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• Customizing user privileges for an account in Windows (xp/vista/7)?

  - by claws

  Hello, I'm a .NET developer and recently learning WINDOWS API. When ever a program starts, my Kaspersky anti-virus says "application belonging to trusted group is trying to set debug previleges". I started wondering what are debug privileges? When ever application tries to open a file (using OpenFileDialog) it gives this message about debug privileges. It sometimes also says the so & so application is trying to read desktop.ini I'm not sure about what exactly it is either. Any way, my concern is about user previlages. When creating user account. We can only set the account to be either Administrative or Limited user. I read in MSDN that there are so many privileges for a user account. http://msdn.microsoft.com/en-us/library/bb530716(VS.85).aspx SE_ASSIGNPRIMARYTOKEN_NAME SE_AUDIT_NAME SE_BACKUP_NAME SE_CHANGE_NOTIFY_NAME SE_CREATE_GLOBAL_NAME SE_CREATE_PAGEFILE_NAME SE_CREATE_PERMANENT_NAME SE_CREATE_SYMBOLIC_LINK_NAME SE_CREATE_TOKEN_NAME SE_DEBUG_NAME SE_ENABLE_DELEGATION_NAME SE_IMPERSONATE_NAME SE_INC_BASE_PRIORITY_NAME SE_INCREASE_QUOTA_NAME SE_INC_WORKING_SET_NAME SE_LOAD_DRIVER_NAME SE_LOCK_MEMORY_NAME SE_MACHINE_ACCOUNT_NAME SE_MANAGE_VOLUME_NAME SE_PROF_SINGLE_PROCESS_NAME SE_RELABEL_NAME SE_REMOTE_SHUTDOWN_NAME SE_RESTORE_NAME SE_SECURITY_NAME SE_SHUTDOWN_NAME SE_SYNC_AGENT_NAME SE_SYSTEM_ENVIRONMENT_NAME SE_SYSTEM_PROFILE_NAME SE_SYSTEMTIME_NAME SE_TAKE_OWNERSHIP_NAME SE_TCB_NAME SE_TIME_ZONE_NAME SE_TRUSTED_CREDMAN_ACCESS_NAME SE_UNDOCK_NAME SE_UNSOLICITED_INPUT_NAME Well, my question is How can I manually (not programatically) set/customize these privileges for a user account? Surprisingly I'm unable to find a PRIVILEGE CONST for registry access. On my lab computer admin has disabled the registry access to my account. Where can I know more information about these information? I use all 3 operating systems (XP, VISTA, 7) :)

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• OOP Design of items in a Point-of-Sale system

  - by Jonas

  I am implementing a Point-of-Sale system. In the system I represent an Item in three places, and I wounder how I should represent them in OOP. First I have the WarehouseItem, that contains price, purchase price, info about the supplier, suppliers price, info about the product and quantity in warehouse. Then I have CartItem, which contains the same fields as WarehouseItem, but adds NrOfItems and Discount. And finally I have ReceiptItem, thats contains an item where I have stripped of info about the supplier, and only contains the price that was payed. Are there any OOP-recommendations, best-practices or design patterns that I could apply for this? I don't really know if CartItem should contain (wrap) an WarehouseItem, or extend it, or if I just should copy the fields that I need. Maybe I should create an Item-class where I keep all common fields, and then extend it to WarehouseItem, CartItem and ReceiptItem. Sometimes I think that it is good to keep the field of the item and just display the information that is needed.

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• Centralized Windows/Mac Patch Management that is easy to use

  - by BiggsTRC

  I'm looking for advice on what patch management solutions you would recommend based upon your experience. I'm also looking for which ones you would not recommend based upon your experience. We have a mixed network of Windows and Mac clients. Our central servers are all Windows servers, although I have considered putting in a Mac server to better handle our Mac clients. The issue we are facing currently is that we need to maintain the patches on all of our third-party applications. Right now we use WSUS, which handles with patching of Windows and some Microsoft products but that is about it. I need something to cover the other applications, specifically things like Adobe products (Reader, Flash, Dreamweaver, etc.) Our network isn't that big (maybe 200 clients) and I don't have a person to dedicate just to patching and maintaining a patch management solution. Thus very large and complicated solutions like System Center are most likely out. I have recently been looking at Dell's Kace K1000 solution (http://www.kace.com/products/systems-management-appliance/). It seems simple and it provides a lot of tools in one package that I would like/need as well. I like the fact that it is self-contained in an appliance and that it is designed for solutions like mine. However, I'm not sure if this is the best solution. I've also looked some at Shavlik's Netchk solution (http://www.shavlik.com/netchk-protect.aspx) but I don't need an anti-virus product. However, it looks like they might have a very good patch database. My question is this: What are your thoughts on these to products? Are there better products out there? Are there issues that I'm not considering? I want something that is very good at patching a broad range of products, that is simple to use, that takes a minimal amount of management (like WSUS), and that (hopefully) works with Mac and Windows.

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• Windows 7 - system error 5 problem

  - by Ian

  My wife has just had a new computer for Christmas (with an upgrade from VISTA to Windows 7), and has joined the home network. We are using a mix of WindowsXP and Ubuntu boxes linked via a switch. We are all in the same workgroup. (No domain). Internet access, DHCP, and DNS server is an SME server that thinks it is domain controller (although we are not using a domain). I need to run a script to back up my wife's machine (venus). In the past the script creates a share on a machine with lots of space (leda), and then executes the line. PSEXEC \\venus -u admin -p adminpassword -c -f d:\Progs\snapshot.exe C: \\leda\Venus\C-drive.SNA With the wife's old XP machine, this would run the sysinternals utility, copy shapshot,exe to her machine and run it, which would then back up her C: drive to the share on leda. I cannot get this to work with Windows 7, nor can I link through to the C$ share on her machine. This gives me a permissions error (system error 5). The admin account is a full admin account. And yes - I do know the password. The ordinary shares on her machine work fine! I guess I'm missing something that Microsoft have built into Windows 7 - but what? The machine is running Windows 7 business, with windows firewall, AVG anti virus, and all the crap-ware you get with a new PC removed. Thanks

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• Why Do Browsers Leak Memory?

  - by Dane Balia

  A colleague and I were speaking about browsers (using browser control in a project), and it appears as plain as day that all browsers (Firefox, Chrome, IE, Opera) display the same characteristic or side-effect from their usage and that being 'Leaking Memory'. Can someone explain why that is the case? Surely as with any form of code, there should be proper garbage collection? PS. I've read about some defensive patterns on why this can happen from a developer's perspective. I am aware of an article Crockford wrote on IE; but why is the problem symptomatic of every browser? Thanks

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• Windows 8 auto-hibernate from sleep not working on Retina MacBook Pro

  - by frenchglen

  I have a similar question to this one. Only my context is the 15" Retina MacBook Pro - and Windows 8. I have just the original Mac OS X Mountain Lion on there, then Windows 8 via Bootcamp. no rEFIt installed. (I just press ALT every time I restart windows, actually as a security measure to stop tech-unsavvy thugs, who, if the laptop is stolen, think it's only a mac and don't discover my Windows as quickly as they would've, and by that time I remotely activate various anti-theft mac apps and nab them that way). SO: like the related question asks, why isn't it behaving like it should? The Windows 7 FAQ states: Will sleep eventually drain my laptop battery? If your laptop battery charge gets critically low while the computer is asleep, Windows automatically puts the laptop into hibernation mode. But this is just not happening - on my rMBP Windows 8. It seems EVERY time I set the laptop to sleep (when it reaches 10%), then arriving home and plugging it in and hoping to simply resume my work, it does NOT save the session to disk and I lose ALL my work. Who's fault is it? Win 8's (a bug, grr)? Or Apple's EFI system (maybe fixable via editing EFI options/do I have to install refit to make it work perhaps?) Or maybe changing windows power options can somehow fix the problem? Thanks for your help.

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• ruby/ruby on rails memory leak detection

  - by Josh Moore

  I wrote a small web app using ruby on rails, its main purpose is to upload, store, and display results from xml(files can be up to several MB) files. After running for about 2 months I noticed that the mongrel process was using about 4GB of memory. I did some research on debugging ruby memory leaks and could not find much. So I have two questions. Are there any good tools that can be used to find memory leaks in Ruby/rails? What type of coding patterns cause memory leaks in ruby?

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• C or C++ to write a compiler?

  - by H.Josef

  I want to write a compiler for a custom markup language, I want to get optimum performance and I also want to have a good scalable design. Multi-paradigm programming language (C++) is more suitable to implement modern design patterns, but I think that will degrade performance a little bit (think of RTTI for example) which more or less might make C a better choice. I wonder what is the best language (C, C++ or even objective C) if someone wants to create a modern compiler (in the sense of complying to modern software engineering principles as a software) that is fast, efficient, and well designed.

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• Suggestions for Single-Page Web Application Design?

  - by DaveDev

  My view is that unless you need to change the basic structure of the user interface, you should not have to reload the page at all for any user interactions. I'd like to approach my next ASP.NET MVC project with this in mind. Can anyone suggest any principles, patterns or practices* I should consider? Excellent book, btw. Still trying to wrap my head around some of the concepts though. I thought a question like this would help link the theory to a practical design. Thanks

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• Desktop.ini Issues/Confusion

  - by EpicDavi

  BACKSTORY: I was out of town for a while and I forgot to turn my computer off. When I came back I saw that a desktop.ini file was on my desktop (using Windows 7). I thought that was odd because I knew it was a system file and it usually didn't show up due to the fact that I had disable the feature to show system files. Also it wasn't translucent like the other system files. I went to my control panel and saw that the "Hide protected operating system files" was indeed enabled. This puzzled me so I disabled the setting and another one was on my desktop like it usually is hidden. So now I have to desktop.ini files on my desktop: one hidden and one not hidden. I am doing an antivirus check to see if anything was going on and I will give an update soon. I am pretty sure these files are harmless and could be deleted but I would rather get another person's opinion on the subject. Thanks! UPDATE: I did an anti-virus scan and it seems I have no problems. It is odd because the file seems to maintain system file properties such as not being able to be edited and other things. Also I have tried restarting my computer and it is still not hidden. So the question remains: What should I do with the file and what caused it?

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• Explain Python extensions multithreading

  - by Checkers

  Python interpreter has a Global Interpreter Lock, and it is my understanding that extensions must acquire it in a multi-threaded environment. But Boost.Python HOWTO page says the extension function must release the GIL and reacquire it on exit. I want to resist temptation to guess here, so I would like to know what should be GIL locking patterns in the following scenarios: Extension is called from python (presumably running in a python thread). And extension's background thread calls back into Py_* functions. And a final question is, why the linked document says the GIL should be released and re-acquired?

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• Task Manager Does Not Start Every Time

  - by diek

  I have had a problem that started some time ago, 6 months maybe. I should have noted the first instance but I didn't. I am using Windows 7 Pro, 32bit. Under normal circumstances I can open up the the Task Manager, via the task bar or cntrl alt del. When I get a program stuck, causing a freeze or non-responsive system I try to open the task manager. It will not work. I have had plenty of similar problems in the past and I had no trouble getting it open. I have searched the internet but the only results I can find are when the task manager will not start under any situation. I am running ESET NOD32 as the anti-virus. The latest example happened when I opened a new tab in Google and tried to copy an image. Google accounts for at least 50% of the examples. Ran System File Checker tool, sfc /scannow as recommended on another post. No errors returned. Any guidance would be appreciated.

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• What are some interesting fringe programming topics that might have hands-on training?

  - by hal10001

  Whenever training topic questions are asked, the answers are fairly typical, and involve a pretty limited subset of topics like OO, design patterns, algorithms, web services, SQL, etc., but I wonder if there are some fringe topics that are still applicable to the programming field and would give me a more rounded approach to development. When I think of "fringe", I think of 2600: The Hacker Quarterly articles that discuss how to use real world (sometimes obscure) exploits, or something like Maker Faire that demonstrates embedded systems programming using Arduino. I have around $1500-2000 to spend, and my job entails Java technologies, but that does not limit my options.

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• Best practices book for CRUD apps

  - by Kevin L.

  We will soon be designing a new tool to calculate commissions across multiple business units. This new compensation scheme is pretty clever and well thought-out, but the complexity that the implementation will involve will make the Hubble look like a toaster. A significant portion of the programming industry involves CRUD apps; updating insurance data, calculating commissions (Joel included) ...even storing questions and answers for a programmer Q&A site. We as programmers have Code Complete for the low-level formatting/style and Design Patterns for high-level architecture (to name just a few). Where’s the comparable book that teaches best practices for CRUD?

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• Cleaning a proxy/phishing trojan from Windows XP computer

  - by i-g

  I am trying to remove an interesting trojan from a Windows XP computer. It manifests itself as a phishing page (screenshot linked) that appears after the user tries to log on to eBay. So far, I haven't found any other web sites that are affected. As you can see, the trojan intercepts browser connections (all installed browsers are affected) and injects this phishing page. The address looks like it's ebay.com, but HTTPS verification doesn't work (no lock icon or green bar in Firefox.) At some point, Trojan.Dropper appeared on the computer. I removed it with Malwarebytes Anti-Malware. Although it reappeared several times, it seemed to be gone after I booted into Safe Mode and did a full system scan with MBAM. Now, however, a different trojan has appeared on the machine; I suspect it was installed by Trojan.Dropper. So far, MBAM, Ad-Aware, and Spybot S&D have been unable to remove it. I've looked for it in the HijackThis log but haven't found anything conclusive. Has anyone run across a trojan like this before? Where would I start looking for it to remove it manually? Thank you for reading.

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• Finding a pattern within a string variable in C#

  - by lo3

  Ok i'm working on a project for a 200 level C# course, we are required to create a heads or tails project. Basically the project is setup so that the computer will guess randomly up to 5 times, but on the sixth time it will look into the playersGuessHistory variable setup as a string to see if it can find a match for a pattern of 4 entires, if there is a pattern found the computer will guess the next character after the pattern EX: [HHTT]H [HHTTH]H HHTT being the pattern then the computer would guess H for the next turn. My only problem is that i'm having difficulty setting up the project so that it will look through the playersguesshistory and find the patterns and guess the next character in the history. Any suggestions?

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• Network share not always available on Windows 2003

  - by JP Hellemons

  Hello everybody, we have a windows 2003 server with a shared directory/folder. I've seen this thread but this wasn't any help: http://superuser.com/questions/58890/the-specified-network-name-is-no-longer-available I have a ping -t running from 3 pc's (vista and two windows 7) they all work. the problem occurss when two users enter the network share then this 'network share is no longer available' appears and the explorer windows turn white. after f5 or refresh the shared directory is back. this is really strange. there is no anti virus or kasparsky running on either end. this is all in the same LAN. the internet connection is really stable, so it's really strange. because a stable internet connection should imply that the local network connection is also stable and that this is a windows issue. can it be a router issue? I have checked the eventlog on the server for diskfailure related messages, but there are none. EDIT: can this be related to mapping a shared directory to a drive letter? and that there is a router between me and the mapped network drive? or is it just windows that is not working well with two users on the same shared folder? should I install samba or something?

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• realistically speaking, could a seasoned .net developer enter the java space and land a job?

  - by mrblah

  I've been working with .net since 2001, and I am considering making a move into the java space. I find that java has so many more mature tools (hibernate is more mature, spring framework, established patters/designs, containers, distributed cache frameworks, etc etc.) I have been doing .net, and just recently I have been getting into design patterns, ORMS, etc. and it just seems the .net side of things are not as mature. Yes the trend going forward looks great as more and more are getting into this design strategy etc. I don't want this to get into a flame war, but I read that its not about the framework/stack, but the tools around it are what make the difference. And to me Java seems to be the winner. Anyhow, the real question here is, could I realistically get into shape in 6 months? i.e. Someone would consider hiring me, and not at a junior dev pay rate? Is this a bad idea?

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• Inter-VLAN Malicious Code Scanning

  - by Jackthedog

  I am trying to find an inbuilt solution on a Cisco Catayst 3750X Switch to scan all traffic routed from one VLAN to another for malicious code. The situation is that we currently have a development environment which is currently being redesigned to upgrade the network infrastructure to use the 3750X switches to manage server and workstation connectivity as well as inter-VLAN routing. We also have another system that is responsible for taking the builds created on the development environment and imaging various HDDs. Because these are two separate systems, we have a requirement in the workplace to anti-virus scan any data transferred between these systems. This is done by copying the data from the originating system to external USB HDD, scanning in a standalone workstation and then copying the data on to the receiving system. As you can imagine this is extremely tedious and impractical most of the time... (I don't make the rules). Anyway, with this redesign going on, we would like to join the imaging system to the network infrastructure of the development system, keeping separation by the use of VLANs and restricting traffic by using ACLs. As we still have the requirement to scan all traffic I would like to configure some sort of malicious code scanning when ever traffic is routed between these VLANs. I am aware I could install a separate in-line IPS/IDS device, however both systems will be using multiple ports on the switch (obviously), and we won't be able to put a device on each port. I would would prefer not to add additional hardware if the 3750x switch is capable of doing the job. Is anyone aware of any Cisco solution that I could use here, that ideally can be incorporated into the 3750x switch? Thanks in advance.

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• Handy F# snippets

  - by Benjol

  There are already two questions about F#/functional snippets. However what I'm looking for here are useful snippets, little 'helper' functions that are reusable. Or obscure but nifty patterns that you can never quite remember. Something like: open System.IO let rec visitor dir filter= seq { yield! Directory.GetFiles(dir, filter) for subdir in Directory.GetDirectories(dir) do yield! visitor subdir filter} I'd like to make this a kind of handy reference page. As such there will be no right answer, but hopefully lots of good ones.

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• Are some data structures more suitable for functional programming than others?

  - by Rob Lachlan

  In Real World Haskell, there is a section titled "Life without arrays or hash tables" where the authors suggest that list and trees are preferred in functional programming, whereas an array or a hash table might be used instead in an imperative program. This makes sense, since it's much easier to reuse part of an (immutable) list or tree when creating a new one than to do so with an array. So my questions are: Are there really significantly different usage patterns for data structures between functional and imperative programming? If so, is this a problem? What if you really do need a hash table for some application? Do you simply swallow the extra expense incurred for modifications?

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• WD my cloud 4th is Super Slow

  - by Saduser

  I am using a WD my cloud 4Tb and I have read other posts about users complaining about getting only 10Mb per second. My problem is that I am getting about 100kb/s to transfer a 125gb iPhoto library. Estimated time is 11 days to transfer this file. This is unacceptable. On the back of the WD cloud I am getting a solid green light and from what I read this means that I am on a gigabyte network. I have mac book pro running Mac OS Mavericks. I have tried 4 different cables and turned off my router firewall. I don't run anti-virus nor any firewall on the mac. Other things I have checked: direct connection to both router and WD cloud device. Tried wireless but it is even slower. Previously I was able to transfer a 55Gb iPhoto library in 14 hours which I felt was acceptable. I figured it would take approximately double the time to transfer the 125gb file but 11 days is ridiculous. Any other suggestions? Anything else I can check (how to check it) what is the bottle neck?

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• Best practices for developing bigger applications on Android

  - by Janusz

  I've already written some small Android Applications, most of them in one Activity and nearly no data that should be persistent on the device. Now I'm writing an application that needs more Activities and I'm a bit puzzled about how to organize all this. My app will download some data parse it show it to the user and then show other activities depending on the data and the user interaction. Some of that data could be cached, some of it has to be downloaded every time. Some of that data should not be downloaded freshly at the moment the orientation changes, but it should on the moment the activity is created... Another thing I'm confused about are things like a httpClient. I now for example create a new httpclient for every activity, the same thing for locationlisteners. Are there books, a blogs or documentations with patterns, examples and advice on organizing larger apps build on android? Everything I found until now are get startet tutorials leaving me alone after 60 lines of code...

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• Can zlib.crc32 or zlib.adler32 be safely used to mask primary keys in URLs?

  - by David Eyk

  In Django Design Patterns, the author recommends using zlib.crc32 to mask primary keys in URLs. After some quick testing, I noticed that crc32 produces negative integers about half the time, which seems undesirable for use in a URL. zlib.adler32 does not appear to produce negatives, but is described as "weaker" than CRC. Is this method (either CRC or Adler-32) safe for usage in a URL as an alternate to a primary key? (i.e. is it collision-safe?) Is the "weaker" Adler-32 a satisfactory alternative for this task? How the heck do you reverse this?! That is, how do you determine the original primary key from the checksum?

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• Django/MySQL - __istartswith not producing case-insensitive query.

  - by TheLizardKing

  I make use of generic views and I am attempting to query my MySQL db (utf8_bin collation) in a case insensitive manor to try to find all my song titles that start with a particular letter. view.py def tracks_by_title(request, starts_with): return object_list( request, queryset = Track.objects.filter(title__istartswith=starts_with), template_name = 'tlkmusic_base/titles_list.html', template_object_name = 'tracks', paginate_by = 25, ) and my urls.py urlpatterns = patterns('tlkmusic.apps.tlkmusic_base.views', (r'^titles/(?P<starts_with>\w)/$', tracks_by_title), ) the query it produces according to the django debug toolbar is: SELECT `tracks`.`id`, `tracks`.`url`, `tracks`.`artist`, `tracks`.`album`, `tracks`.`genre`, `tracks`.`year`, `tracks`.`title`, `tracks`.`comment`, `tracks`.`tracknumber`, `tracks`.`discnumber`, `tracks`.`bitrate`, `tracks`.`length`, `tracks`.`samplerate`, `tracks`.`filesize`, `tracks`.`createdate`, `tracks`.`modifydate` FROM `tracks` WHERE `tracks`.`title` LIKE a% LIMIT 1 specifically this line: WHERE `tracks`.`title` LIKE a% LIMIT 1 Why is it not ILIKE which is what I was expecting by using __istartswith? I am using Django 1.1.1 on Ubuntu.

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