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  • Copying files locally on a network folder

    - by Altay_H
    I noticed that copying a large file from one location on a network drive to another location on the same network drive takes much longer than copying it locally. Instead of copying the file locally, the network computer sends the file to my remote computer, which sends it back to the same network computer. This means the files are being transferred over the network completely unnecessarily. Is there a way to fix this issue? It's becoming a real hassle to manage the video files on my network drive. Note: This is the case with both Windows and Linux (using Samba) network folders.

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  • How to use a retail Windows 7 Professional license key to upgrade an installed Windows 7 Home Premium machine

    - by jalperin
    I purchased a retail version of Windows 7 Professional and installed it on a computer. That machine has died, and I replaced it with a new computer which came with Windows 7 Home Premium already installed. I'd like to have Professional, not Home Premium, on the new machine, and I don't want to pay for an "Anytime Upgrade" because I already have a valid Windows 7 Professional license (for the dead computer). Is there a way to legally upgrade using my Professional license key? I've already installed programs, data, etc on the new machine, so I don't want to reformat and start from scratch.

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  • What are the common Control combinations in a terminal setting

    - by Hamish Downer
    I would like to have a good guide to the common Control key combinations in use in bash (and similar) shells and the combinations used by common programs in use in those shells. My particular motivation is to be able to run GNU screen on one computer, ssh to a second computer and use screen and irssi on that computer. So I need to use something other than Ctrl-A to control one of the screen sessions. So I need to know what are Control key combinations are safe to use. But I imagine this list would be useful for others who want to bind custom actions to Control key combinations. I reckon we'd be best to group the Control key combinations by application (eg. bash itself, screen, vim, emacs), to make it easy to spot the applications you use or can ignore. So please one application per answer - hope that works.

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  • How quickly do I need to complete the installation of Windows updates once they're available?

    - by DragonLord
    I know that Microsoft publishes most updates on the second Tuesday of each month. While I understand that it is important to install security updates as soon as possible, do I place my computer at a significant risk if I wait more than a few hours after the updates are available to install the updates and restart the computer to complete installation? I'm asking because 1) I can't always restart the computer immediately after the system prompts me to do so; and 2) the download process sometimes has to be manually started late in the day when I remember, much later than when they're released at 01:00 PM EST/EDT, because Windows Update only seems to check automatically once per day and does so as soon as I connect to the Internet. Ideally, answers should be detailed and objective, with citations to references as appropriate.

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  • Windows 7 Recovery Console File Access Denied

    - by Ty Rozak
    Recently by computer crashed and was stuck in a boot loop. So I created a Windows Recovery CD and booted from that. When I use the command prompt in the recovery console, I cannot see any of my personal files or folders (such a my Users folder with My Documents). Is there a way to access these files? The only reason I would need to fix the computer properly would be to get these files off of the computer and onto a hard drive. Any other fix suggestions would be greatly appreciated. I have tried both system repair and system restore from the Recovery Console, but neither seem to work. Thanks.

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  • What are the licensing differences between Windows 8 Professional x64 fqc-05955 and fqc-05956?

    - by Razvan Panda
    If I do a search for Windows 8 Professional x64 in my country, the only version I can find is having the code fqc-05955 and is labeled OEM. If I perform same search on amazon.com, the only version I can find is having the code fqc-05956 and is labeled System Builder. There's not much information about licensing of Windows 8 that I could find. According to this article when using System Builder it can be transferred from one computer to another. What are the differences in licensing between those 2? Is fqc-05955 transferable from one hardware to another like System Builder is? Can I install fqc-05955 on a computer I already own that has no prior windows licensing? I am asking this, since many stores that sell fqc-05955 say it can only be bough with a computer. Thanks for your help!

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  • Windows 8 Login Password Out of Sync with Windows Live ID

    - by Israel Lopez
    I'm working with a computer that has setup a local account connected under Windows Live ID. The user can login to Live ID (like hotmail) from another computer with the correct credentials. However from the Windows 8 computer using the correct password it indicates. That password is incorrect. Make sure you're using the password for you Mircrosoft Account. You can always reset it at account.live.com/password/reset. Now, I've used NTPASSWD to reset the password, but it seems that since its not a "Local Account" it wont take the new password or blank one. This account also has a "PIN" the user who also has forgotten it. I also tried to enable/password set the local Administrator account but it does not show up for login. Any ideas?

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  • What happens when more RAM is installed than the motherboard supports?

    - by DanDan
    I have a free RAM slot and some spare memory that will fit my computer. However the problem is my motherboard only supports 2GB and I have 2GB installed. What would happen if I plugged the spare memory in the RAM slot? The following things spring to mind: Nothing will happen It will work, computer becomes faster Computer becomes slower Explosion Undetermined (Any of the above) Does anyone have any experience of this? Update: Egged on by you zealous lot, I went ahead and stuck the extra memory in. It booted up! Unfortunately, the hunch of some has been proved correct. The memory is reported at the capped limit, rather then the actual available. A shame then! But thank you all for your suggestions, speculations and stories. For your reference, I am using a Dell Insprion 6000 with 2gb installed, latest drivers. I attempted to add 512mb, with no success.

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  • [MINI HOW-TO] Update Your Zune Player Software

    - by Mysticgeek
    Keeping your computer and software up to date is very important in keeping everything running smooth and secure. It’s also important to keep your geeky gadgets updated as well. Here we take a look at updating a Zune HD. Note: In this example we’re updating a Zune HD out of the box which hasn’t been updated yet. The first thing you’ll need to do if you haven’t already is download and install the latest Zune software (link below). Now plug your Zune into your computer with the included USB connection cable and give it a moment to be recognized. Next launch the Zune Desktop software and you should get the following screen. Just accept the EULA… Then the update kicks off. Make sure not to disconnect the Zune while the update takes place. The update will take a few minutes, and after it’s complete you should be good to go and can start using your Zune. To update your player in the future, go to General Settings then Player Update. Just like your computer’s hardware and software, you want to keep your other geeky gadgets updated as well. This will help the device run more smoothly, and sometimes add additional functionality. Download Zune 4.0 Similar Articles Productive Geek Tips Switch Ubuntu Server to use Internet Repositories Instead of cdromGreat Sounding Music and Skin Possibilities with XionExaile 0.3.0 is a Music Player for UbuntuMake VLC Player Look like Windows Media Player 11Unofficial Windows XP Themes Created by Microsoft TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Increase the size of Taskbar Previews (Win 7) Scan your PC for nasties with Panda ActiveScan CleanMem – Memory Cleaner AceStock – The Personal Stock Monitor Add Multiple Tabs to Office Programs The Wearing of the Green – St. Patrick’s Day Theme (Firefox)

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  • Unhappy with performance of GBit Ethernet to Fiber converter

    - by Aaron Digulla
    I just bought a TP-Link MC200CM GBit Ethernet (1000-T) to Fiber (1000-SX) media converter. The device works but I'm unhappy with the performance: When connecting my computer over 1000-T (twisted pair, Cat 6, 18meters) with my server, I get a throughput of about 610MBit/s. If I replace the cable with two media converters, I'm left with about 310-315MBit/s (i.e. half the performance). My setup is like this: Computer <- GBit switch <- long cable <- GBit switch <- server Computer <- GBit switch <- MC200CM <- 30m fiber <- MC200CM <- GBit switch <- server Is there a way to improve the performance? Will another MC be faster? Or is that about as much as I can expect with the additional 2 converters?

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  • bootmgr is missing

    - by jean
    I have a Toshiba and it is windows 7 and as soon as i turn my computer on it says bootmgr is missing. the only thing i can get into is the setup menu. does anyone know what might be wrong because my step brother thinks that it might be that everything was erased off my hard drive. the last thing he did when he used it was the toshiba updates and restarted the computer. so if any one knows what might be wrong or how i can get my computer up and running please let me know.

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  • Present a form to user on Windows login

    - by Keyslinger
    I have a public computer lab where users must give a few short details about themselves such as their age and objective before they use the computers. Currently this information is gathered by a lab attendant on paper. I would like for the user to be given a form in Windows at the beginning of his or her session on a computer in the lab. It should be impossible to use the computer without filling out and submitting this form. I am confident in my abilities as a web application developer and I would prefer to collect the data in some sort of browser-based form. How do I present it to the user and lock them out of Windows until it has been submitted?

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  • SQL SERVER – OLEDB – Link Server – Wait Type – Day 23 of 28

    - by pinaldave
    When I decided to start writing about this wait type, the very first question that came to my mind was, “What does ‘OLEDB’ stand for?” A quick search on Wikipedia tells me that OLEDB means Object Linking and Embedding Database. (How many of you knew this?) Anyway, I found it very interesting that this wait type was in one of the top 10 wait types in many of the systems I have come across in my performance tuning experience. Books On-Line: ????OLEDB occurs when SQL Server calls the SQL Server Native Client OLE DB Provider. This wait type is not used for synchronization. Instead, it indicates the duration of calls to the OLE DB provider. OLEDB Explanation: This wait type primarily happens when Link Server or Remove Query has been executed. The most common case wherein this wait type is visible is during the execution of Linked Server. When SQL Server is retrieving data from the remote server, it uses OLEDB API to retrieve the data. It is possible that the remote system is not quick enough or the connection between them is not fast enough, leading SQL Server to wait for the result’s return from the remote (or external) server. This is the time OLEDB wait type occurs. Reducing OLEDB wait: Check the Link Server configuration. Checking Disk-Related Perfmon Counters Average Disk sec/Read (Consistent higher value than 4-8 millisecond is not good) Average Disk sec/Write (Consistent higher value than 4-8 millisecond is not good) Average Disk Read/Write Queue Length (Consistent higher value than benchmark is not good) At this point in time, I am not able to think of any more ways on reducing this wait type. Do you have any opinion about this subject? Please share it here and I will share your comment with the rest of the Community, and of course, with due credit unto you. Please read all the post in the Wait Types and Queue series. Note: The information presented here is from my experience and there is no way that I claim it to be accurate. I suggest reading Book OnLine for further clarification. All the discussion of Wait Stats in this blog is generic and varies from system to system. It is recommended that you test this on a development server before implementing it to a production server. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

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  • Read-only filesystem Recovery Mode not working

    - by purbleguy
    I have seen other posts of this before, but they didn't help. In short, today I was trying to play Colobot on my Ubuntu Trusty computer, when I tried to access the directory the game was in by terminal, bash warned me that the disk was in a read-only state. I'm like, ok... So I reboot and go into recovery mode, there I do fsck, it finds errors, but apparently fails to fix them. At that point I was getting annoyed and searched the internet, once I found an answer I ran the grub and dpkg options in recovery mode, recovery mode said it was read/write, but when I boot in, I get the same thing, read-only. So I reboot into recovery mode, and tada! It's read-only again. I can't think of anything else to do, as the other people who had the same problems had them fixed by the steps I did. I got all my important files backed up to both a seperate partition and a seperate computer, so no worries there. I just need help getting this to work, as my computer might as well be a brick if I cant do f/a on it

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  • Microsoft&rsquo;s new technical computing initiative

    - by Randy Walker
    I made a mental note from earlier in the year.  Microsoft literally buys computers by the truckload.  From what I understand, it’s a typical practice amongst large software vendors.  You plug a few wires in, you test it, and you instantly have mega tera tera flops (don’t hold me to that number).  Microsoft has been trying to plug away at their cloud services (named Azure).  Which, for the layman, means Microsoft runs your software on their computers, and as demand increases you can allocate more computing power on the fly. With this in mind, it doesn’t surprise me that I was recently sent an executive email concerning Microsoft’s new technical computing initiative.  I find it to be a great marketing idea with actual substance behind their real work.  From the programmer academic perspective, in college we dreamed about this type of processing power.  This has decades of computer science theory behind it. A copy of the email received.  (note that I almost deleted this email, thinking it was spam due to it’s length) We don't often think about how complex life really is. Take the relatively simple task of commuting to and from work: it is, in fact, a complicated interplay of variables such as weather, train delays, accidents, traffic patterns, road construction, etc. You can however, take steps to shorten your commute - using a good, predictive understanding of a few of these variables. In fact, you probably are already taking these inputs and instinctively building a predictive model that you act on daily to get to your destination more quickly. Now, when we apply the same method to very complex tasks, this modeling approach becomes much more challenging. Recent world events clearly demonstrated our inability to process vast amounts of information and variables that would have helped to more accurately predict the behavior of global financial markets or the occurrence and impact of a volcano eruption in Iceland. To make sense of issues like these, researchers, engineers and analysts create computer models of the almost infinite number of possible interactions in complex systems. But, they need increasingly more sophisticated computer models to better understand how the world behaves and to make fact-based predictions about the future. And, to do this, it requires a tremendous amount of computing power to process and examine the massive data deluge from cameras, digital sensors and precision instruments of all kinds. This is the key to creating more accurate and realistic models that expose the hidden meaning of data, which gives us the kind of insight we need to solve a myriad of challenges. We have made great strides in our ability to build these kinds of computer models, and yet they are still too difficult, expensive and time consuming to manage. Today, even the most complicated data-rich simulations cannot fully capture all of the intricacies and dependencies of the systems they are trying to model. That is why, across the scientific and engineering world, it is so hard to say with any certainty when or where the next volcano will erupt and what flight patterns it might affect, or to more accurately predict something like a global flu pandemic. So far, we just cannot collect, correlate and compute enough data to create an accurate forecast of the real world. But this is about to change. Innovations in technology are transforming our ability to measure, monitor and model how the world behaves. The implication for scientific research is profound, and it will transform the way we tackle global challenges like health care and climate change. It will also have a huge impact on engineering and business, delivering breakthroughs that could lead to the creation of new products, new businesses and even new industries. Because you are a subscriber to executive e-mails from Microsoft, I want you to be the first to know about a new effort focused specifically on empowering millions of the world's smartest problem solvers. Today, I am happy to introduce Microsoft's Technical Computing initiative. Our goal is to unleash the power of pervasive, accurate, real-time modeling to help people and organizations achieve their objectives and realize their potential. We are bringing together some of the brightest minds in the technical computing community across industry, academia and science at www.modelingtheworld.com to discuss trends, challenges and shared opportunities. New advances provide the foundation for tools and applications that will make technical computing more affordable and accessible where mathematical and computational principles are applied to solve practical problems. One day soon, complicated tasks like building a sophisticated computer model that would typically take a team of advanced software programmers months to build and days to run, will be accomplished in a single afternoon by a scientist, engineer or analyst working at the PC on their desktop. And as technology continues to advance, these models will become more complete and accurate in the way they represent the world. This will speed our ability to test new ideas, improve processes and advance our understanding of systems. Our technical computing initiative reflects the best of Microsoft's heritage. Ever since Bill Gates articulated the then far-fetched vision of "a computer on every desktop" in the early 1980's, Microsoft has been at the forefront of expanding the power and reach of computing to benefit the world. As someone who worked closely with Bill for many years at Microsoft, I am happy to share with you that the passion behind that vision is fully alive at Microsoft and is carried out in the creation of our new Technical Computing group. Enabling more people to make better predictions We have seen the impact of making greater computing power more available firsthand through our investments in high performance computing (HPC) over the past five years. Scientists, engineers and analysts in organizations of all sizes and sectors are finding that using distributed computational power creates societal impact, fuels scientific breakthroughs and delivers competitive advantages. For example, we have seen remarkable results from some of our current customers: Malaria strikes 300,000 to 500,000 people around the world each year. To help in the effort to eradicate malaria worldwide, scientists at Intellectual Ventures use software that simulates how the disease spreads and would respond to prevention and control methods, such as vaccines and the use of bed nets. Technical computing allows researchers to model more detailed parameters for more accurate results and receive those results in less than an hour, rather than waiting a full day. Aerospace engineering firm, a.i. solutions, Inc., needed a more powerful computing platform to keep up with the increasingly complex computational needs of its customers: NASA, the Department of Defense and other government agencies planning space flights. To meet that need, it adopted technical computing. Now, a.i. solutions can produce detailed predictions and analysis of the flight dynamics of a given spacecraft, from optimal launch times and orbit determination to attitude control and navigation, up to eight times faster. This enables them to avoid mistakes in any areas that can cause a space mission to fail and potentially result in the loss of life and millions of dollars. Western & Southern Financial Group faced the challenge of running ever larger and more complex actuarial models as its number of policyholders and products grew and regulatory requirements changed. The company chose an actuarial solution that runs on technical computing technology. The solution is easy for the company's IT staff to manage and adjust to meet business needs. The new solution helps the company reduce modeling time by up to 99 percent - letting the team fine-tune its models for more accurate product pricing and financial projections. Our Technical Computing direction Collaborating closely with partners across industry and academia, we must now extend the reach of technical computing even further to help predictive modelers and data explorers make faster, more accurate predictions. As we build the Technical Computing initiative, we will invest in three core areas: Technical computing to the cloud: Microsoft will play a leading role in bringing technical computing power to scientists, engineers and analysts through the cloud. Existing high- performance computing users will benefit from the ability to augment their on-premises systems with cloud resources that enable 'just-in-time' processing. This platform will help ensure processing resources are available whenever they are needed-reliably, consistently and quickly. Simplify parallel development: Today, computers are shipping with more processing power than ever, including multiple cores, but most modern software only uses a small amount of the available processing power. Parallel programs are extremely difficult to write, test and trouble shoot. However, a consistent model for parallel programming can help more developers unlock the tremendous power in today's modern computers and enable a new generation of technical computing. We are delivering new tools to automate and simplify writing software through parallel processing from the desktop... to the cluster... to the cloud. Develop powerful new technical computing tools and applications: We know scientists, engineers and analysts are pushing common tools (i.e., spreadsheets and databases) to the limits with complex, data-intensive models. They need easy access to more computing power and simplified tools to increase the speed of their work. We are building a platform to do this. Our development efforts will yield new, easy-to-use tools and applications that automate data acquisition, modeling, simulation, visualization, workflow and collaboration. This will allow them to spend more time on their work and less time wrestling with complicated technology. Thinking bigger There is so much left to be discovered and so many questions yet to be answered in the fascinating world around us. We believe the technical computing community will show us that we have not seen anything yet. Imagine just some of the breakthroughs this community could make possible: Better predictions to help improve the understanding of pandemics, contagion and global health trends. Climate change models that predict environmental, economic and human impact, accessible in real-time during key discussions and debates. More accurate prediction of natural disasters and their impact to develop more effective emergency response plans. With an ambitious charter in hand, this new team is ready to build on our progress to-date and execute Microsoft's technical computing vision over the months and years ahead. We will steadily invest in the right technologies, tools and talent, and work to bring together the technical computing community. I invite you to visit www.modelingtheworld.com today. We welcome your ideas and feedback. I look forward to making this journey with you and others who want to answer the world's biggest questions, discover solutions to problems that seem impossible and uncover a host of new opportunities to change the world we live in for the better. Bob

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  • logout when running firefox over ssh

    - by Jacques MALAPRADE
    this is very strange and has never happened before. When I ssh to a remote computer at my uni and try and run firefox (even with -no-remote etc.) it automatically logs me out of my local computer. When I log in again it automatically runs teamviewer ( suspicious!!! ). It also came up with a "network service discovery disabled" error similar to this post when logging back in: network service discovery disabled. I am running ubuntu 12.04 on a hp pavillion laptop. I would appreciate if someone can tell me what I am doing wrong....

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  • Create Windows 8.1 USB Boot Disk to Boot in OSX Maverick

    - by Pengan
    After I installed Mac OSX Maverick 10.9 to my Mac Computer. I have a problem with installing Microsoft Windows 8.1 into my Mac my using Bootcamp. I try some third party software such as Win USB Boot Maker and Rufus. These softwares can make USB Boot disk for non Mac computer however they cannot make it work with Mac. Does anyone know how to create a working Windows 8.1 USB Boot Disk to work with Mac computer which run OSX Maverick? Thank You! Pengan

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  • HP Recovery Manager failed creating a backup disc

    - by Baehr
    I had to restore my computer (running Windows 7) back to its factory default, so I ran the HP recovery manager disc and chose to reformat my computer. Before doing this I was given an option to backup my current files to a DVD, and I did so; getting the confirmation of a successful DVD burn. Booting up my computer everything looks like it did when I first purchased it (like expected). But when I pop in the backup DVD and run the recovery EXE inside it, the application creates a directory inside C:\System Recovery Files which contains the empty directories: [(^_^)] and Program Data. So essentially what I'm getting out of this is a failure in creating a back-up. Which is not only confusing but incredibly frusterating. Is there any way that I can recover the files lost in the

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  • Accessing A Shared Directory That Has An Account White List

    - by Xan
    I'm on a LAN here at work and I have my desktop sharing some of my project folders. I can access the computer via \\ComputerIP\, but I can't actually open any of the folders. Upon attempting, I get the error: Windowns cannot access \ComputerIP\ProjectFolder You do not have permission to access \ComputerIP\ProjectFolder. Contact your network administrator to request access. For more information about permissions, see Windows Help and Support Now, this is understood considering I've made it so that you had to utilize the "Project" credentials to connect. I have a user account on my main computer hosting these shared folders that gives full access to the folders if you are this "Project" user. I can Remote Desktop the computer just fine from my laptop using either set of credentials. When I try to open these folders it doesn't give me the option to attempt to apply any credentials like it does when I remote desktop. How am I supposed to gain access to these folders?

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  • Using VLANs that are routed together?

    - by dannymcc
    I have a quick question that's bugging me the more I read about VLANs. So far I understand that they are useful for dividing the network into sub-sections, but if you route them together does that not remove any security benefit? As an example, if I created a VLAN on my home network which was simply one computer, one server and one router.if I wanted to divide the network between computers and servers I could put the computer on VLAN 10 and the server on VLAN 20. Then the computer would no longer be able to communicate with the server - unless I added a static route to the router that connected the two together, basically telling VLAN 10 that VLAN 20 exists and how to communicate with it. The VLANs would then be connected in a similar way to a 'flat' network that has no VLANs. Therefore, surely, all security benefits are lost. Am I missing something?

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  • Unable to cast transparent proxy to type &lt;type&gt;

    - by Rick Strahl
    This is not the first time I've run into this wonderful error while creating new AppDomains in .NET and then trying to load types and access them across App Domains. In almost all cases the problem I've run into with this error the problem comes from the two AppDomains involved loading different copies of the same type. Unless the types match exactly and come exactly from the same assembly the typecast will fail. The most common scenario is that the types are loaded from different assemblies - as unlikely as that sounds. An Example of Failure To give some context, I'm working on some old code in Html Help Builder that creates a new AppDomain in order to parse assembly information for documentation purposes. I create a new AppDomain in order to load up an assembly process it and then immediately unload it along with the AppDomain. The AppDomain allows for unloading that otherwise wouldn't be possible as well as isolating my code from the assembly that's being loaded. The process to accomplish this is fairly established and I use it for lots of applications that use add-in like functionality - basically anywhere where code needs to be isolated and have the ability to be unloaded. My pattern for this is: Create a new AppDomain Load a Factory Class into the AppDomain Use the Factory Class to load additional types from the remote domain Here's the relevant code from my TypeParserFactory that creates a domain and then loads a specific type - TypeParser - that is accessed cross-AppDomain in the parent domain:public class TypeParserFactory : System.MarshalByRefObject,IDisposable { …/// <summary> /// TypeParser Factory method that loads the TypeParser /// object into a new AppDomain so it can be unloaded. /// Creates AppDomain and creates type. /// </summary> /// <returns></returns> public TypeParser CreateTypeParser() { if (!CreateAppDomain(null)) return null; /// Create the instance inside of the new AppDomain /// Note: remote domain uses local EXE's AppBasePath!!! TypeParser parser = null; try { Assembly assembly = Assembly.GetExecutingAssembly(); string assemblyPath = Assembly.GetExecutingAssembly().Location; parser = (TypeParser) this.LocalAppDomain.CreateInstanceFrom(assemblyPath, typeof(TypeParser).FullName).Unwrap(); } catch (Exception ex) { this.ErrorMessage = ex.GetBaseException().Message; return null; } return parser; } private bool CreateAppDomain(string lcAppDomain) { if (lcAppDomain == null) lcAppDomain = "wwReflection" + Guid.NewGuid().ToString().GetHashCode().ToString("x"); AppDomainSetup setup = new AppDomainSetup(); // *** Point at current directory setup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory; //setup.PrivateBinPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin"); this.LocalAppDomain = AppDomain.CreateDomain(lcAppDomain,null,setup); // Need a custom resolver so we can load assembly from non current path AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve); return true; } …} Note that the classes must be either [Serializable] (by value) or inherit from MarshalByRefObject in order to be accessible remotely. Here I need to call methods on the remote object so all classes are MarshalByRefObject. The specific problem code is the loading up a new type which points at an assembly that visible both in the current domain and the remote domain and then instantiates a type from it. This is the code in question:Assembly assembly = Assembly.GetExecutingAssembly(); string assemblyPath = Assembly.GetExecutingAssembly().Location; parser = (TypeParser) this.LocalAppDomain.CreateInstanceFrom(assemblyPath, typeof(TypeParser).FullName).Unwrap(); The last line of code is what blows up with the Unable to cast transparent proxy to type <type> error. Without the cast the code actually returns a TransparentProxy instance, but the cast is what blows up. In other words I AM in fact getting a TypeParser instance back but it can't be cast to the TypeParser type that is loaded in the current AppDomain. Finding the Problem To see what's going on I tried using the .NET 4.0 dynamic type on the result and lo and behold it worked with dynamic - the value returned is actually a TypeParser instance: Assembly assembly = Assembly.GetExecutingAssembly(); string assemblyPath = Assembly.GetExecutingAssembly().Location; object objparser = this.LocalAppDomain.CreateInstanceFrom(assemblyPath, typeof(TypeParser).FullName).Unwrap(); // dynamic works dynamic dynParser = objparser; string info = dynParser.GetVersionInfo(); // method call works // casting fails parser = (TypeParser)objparser; So clearly a TypeParser type is coming back, but nevertheless it's not the right one. Hmmm… mysterious.Another couple of tries reveal the problem however:// works dynamic dynParser = objparser; string info = dynParser.GetVersionInfo(); // method call works // c:\wwapps\wwhelp\wwReflection20.dll (Current Execution Folder) string info3 = typeof(TypeParser).Assembly.CodeBase; // c:\program files\vfp9\wwReflection20.dll (my COM client EXE's folder) string info4 = dynParser.GetType().Assembly.CodeBase; // fails parser = (TypeParser)objparser; As you can see the second value is coming from a totally different assembly. Note that this is even though I EXPLICITLY SPECIFIED an assembly path to load the assembly from! Instead .NET decided to load the assembly from the original ApplicationBase folder. Ouch! How I actually tracked this down was a little more tedious: I added a method like this to both the factory and the instance types and then compared notes:public string GetVersionInfo() { return ".NET Version: " + Environment.Version.ToString() + "\r\n" + "wwReflection Assembly: " + typeof(TypeParserFactory).Assembly.CodeBase.Replace("file:///", "").Replace("/", "\\") + "\r\n" + "Assembly Cur Dir: " + Directory.GetCurrentDirectory() + "\r\n" + "ApplicationBase: " + AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "\r\n" + "App Domain: " + AppDomain.CurrentDomain.FriendlyName + "\r\n"; } For the factory I got: .NET Version: 4.0.30319.239wwReflection Assembly: c:\wwapps\wwhelp\bin\wwreflection20.dllAssembly Cur Dir: c:\wwapps\wwhelpApplicationBase: C:\Programs\vfp9\App Domain: wwReflection534cfa1f For the instance type I got: .NET Version: 4.0.30319.239wwReflection Assembly: C:\\Programs\\vfp9\wwreflection20.dllAssembly Cur Dir: c:\\wwapps\\wwhelpApplicationBase: C:\\Programs\\vfp9\App Domain: wwDotNetBridge_56006605 which clearly shows the problem. You can see that both are loading from different appDomains but the each is loading the assembly from a different location. Probably a better solution yet (for ANY kind of assembly loading problem) is to use the .NET Fusion Log Viewer to trace assembly loads.The Fusion viewer will show a load trace for each assembly loaded and where it's looking to find it. Here's what the viewer looks like: The last trace above that I found for the second wwReflection20 load (the one that is wonky) looks like this:*** Assembly Binder Log Entry (1/13/2012 @ 3:06:49 AM) *** The operation was successful. Bind result: hr = 0x0. The operation completed successfully. Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework\V4.0.30319\clr.dll Running under executable c:\programs\vfp9\vfp9.exe --- A detailed error log follows. === Pre-bind state information === LOG: User = Ras\ricks LOG: DisplayName = wwReflection20, Version=4.61.0.0, Culture=neutral, PublicKeyToken=null (Fully-specified) LOG: Appbase = file:///C:/Programs/vfp9/ LOG: Initial PrivatePath = NULL LOG: Dynamic Base = NULL LOG: Cache Base = NULL LOG: AppName = vfp9.exe Calling assembly : (Unknown). === LOG: This bind starts in default load context. LOG: Using application configuration file: C:\Programs\vfp9\vfp9.exe.Config LOG: Using host configuration file: LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\V4.0.30319\config\machine.config. LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). LOG: Attempting download of new URL file:///C:/Programs/vfp9/wwReflection20.DLL. LOG: Assembly download was successful. Attempting setup of file: C:\Programs\vfp9\wwReflection20.dll LOG: Entering run-from-source setup phase. LOG: Assembly Name is: wwReflection20, Version=4.61.0.0, Culture=neutral, PublicKeyToken=null LOG: Binding succeeds. Returns assembly from C:\Programs\vfp9\wwReflection20.dll. LOG: Assembly is loaded in default load context. WRN: The same assembly was loaded into multiple contexts of an application domain: WRN: Context: Default | Domain ID: 2 | Assembly Name: wwReflection20, Version=4.61.0.0, Culture=neutral, PublicKeyToken=null WRN: Context: LoadFrom | Domain ID: 2 | Assembly Name: wwReflection20, Version=4.61.0.0, Culture=neutral, PublicKeyToken=null WRN: This might lead to runtime failures. WRN: It is recommended to inspect your application on whether this is intentional or not. WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue. Notice that the fusion log clearly shows that the .NET loader makes no attempt to even load the assembly from the path I explicitly specified. Remember your Assembly Locations As mentioned earlier all failures I've seen like this ultimately resulted from different versions of the same type being available in the two AppDomains. At first sight that seems ridiculous - how could the types be different and why would you have multiple assemblies - but there are actually a number of scenarios where it's quite possible to have multiple copies of the same assembly floating around in multiple places. If you're hosting different environments (like hosting the Razor Engine, or ASP.NET Runtime for example) it's common to create a private BIN folder and it's important to make sure that there's no overlap of assemblies. In my case of Html Help Builder the problem started because I'm using COM interop to access the .NET assembly and the above code. COM Interop has very specific requirements on where assemblies can be found and because I was mucking around with the loader code today, I ended up moving assemblies around to a new location for explicit loading. The explicit load works in the main AppDomain, but failed in the remote domain as I showed. The solution here was simple enough: Delete the extraneous assembly which was left around by accident. Not a common problem, but one that when it bites is pretty nasty to figure out because it seems so unlikely that types wouldn't match. I know I've run into this a few times and writing this down hopefully will make me remember in the future rather than poking around again for an hour trying to debug the issue as I did today. Hopefully it'll save some of you some time as well in the future.© Rick Strahl, West Wind Technologies, 2005-2012Posted in .NET  COM   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • Mandatory Profiles on a Server 2003 TS Box

    - by Chloe
    I have a Windows Server 2003 box which will be acting as a terminal server. It will actually be running Citrix, but I don't believe that to be relevant here. There has been a request for every user to use a single mandatory profile. I've used mandatory profiles before, but there have been generally different profiles for different users so I've always used the "Terminal Services Profile" tab to good effect. What I'd like this time is a single setting, such as a Group Policy or similar that simply forces every non-domain admin user logging on to the box into using the mandatory profile. We'll be using Folder Redirection to take care of everything else. I'm aware of the following GPO: Computer Policy\Computer Configuration\Administrative Templates\Windows Components/Terminal Services Set path for TS Roaming Profiles But, as that's a computer policy, will it not apply to all users including administrators? If so, is it possible to exclude admins somehow?

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  • How to re-add a missing font

    - by WEFX
    I recently upgraded from Office 2007 to 2010, and that went fairly smoothly. However, afterwards, my Calibri font was gone, so my Word and Outlook started using the next available font in the list... Comic Sans! I browsed to Control Panel Fonts, and saw that there was no longer a Calibri listing. I know that one way to recover a missing font is to just copy the missing font files from another computer. In my case, the four files I needed were: calibri.ttf, //regular calibrib.ttf, //bold calibrii.ttf, //italics calibriz.ttf, //bold and italics However, once I attempted to copy-and-paste these files to my computer, I realized these files were already on my problem computer; they never really got erased. I don't know why they aren't working in Office, and they aren't listed in Control Panel Fonts.

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  • IPs on home network

    - by windchime
    I have a Linksys router and a Belkin wireless router at home. The Linksys router is connected to cable modem and two computers, as well as to the Belkin wireless router. A 3rd computer is connected to the Belkin router through Wifi. The IP addresses of the computers connected to Linksys are 192.168.1.101 and 192.168.1.102. The IP address of the Linksys router on LAN is 192.168.1.1. The IP address of the Belkin wireless router is 192.168.2.1(based on the 3rd computer's routing table) and the IP address of the 3rd computer is 192.168.2.5. If I ping 192.168.1.101 from 192.168.2.5, all are well. However, if I ping 192.168.2.5 from 192.168.1.101, Destination Host Unreachable. Why?

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  • Ask the Readers: What Operating System Do You Use?

    - by Mysticgeek
    The three most popular choices out there when it comes to computer operating systems, is Windows, Mac OS X, and Linux. What we want to know is…which operating system do you use? Photo by ~Dudu,,]* Computer users today have more choices than ever when it comes to the operating system they use. In the Windows world, there are three versions out there in daily use. A lot of businesses and home users use XP, completely avoided Vista, and are starting to migrate to Windows 7. While a lot of home users received their new computer with Vista pre-installed and are still using it. Others were quick to jump to Windows 7, and some don’t want to leave the comforts of XP. Desktop Linux distro’s have been consistently growing in popularity as versions like Ubuntu become more user friendly. And let us not forget the loyal Apple users who would never give up OS X. You may have to use a certain OS at the workplace, but when you get home, your options are a lot more open. And now with the ease of virtualization, it’s easy to run multiple operating systems on one machine. Each OS offers different advantages that people pick based on their needs. Today we want to know, which operating system(s) do you use? Let us know in the comments and join the discussion! Similar Articles Productive Geek Tips Easily Set Default OS in a Windows 7 / Vista and XP Dual-boot SetupGet the Version of Solaris RunningDisable System Restore in Windows 7Disable ProFTP on CentOSShut Down or Reboot a Solaris System TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Out of band Security Update for Internet Explorer 7 Cool Looking Screensavers for Windows SyncToy syncs Files and Folders across Computers on a Network (or partitions on the same drive) If it were only this easy Classic Cinema Online offers 100’s of OnDemand Movies OutSync will Sync Photos of your Friends on Facebook and Outlook

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