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• Unknown problem causing major computer failure, Booting problem with windows 7, mainly with 0x0000000A

  - by ken

  Where do I begin? OS=Windows 7 I think it all started when I ran an installation file. I suspect it may have been a virus (even though AVG scan didnt pick anything up). The installation failed, computer crashed then restarted. In the middle of the reboot, I get BSOD. Normal boot up doesnt work so I use safe mode. Method 1: Not a problem I thought cos I will do what I normally do and that was to recover from my image file. Unfortunately, my Acronis software cant recover in safe mode. Method 2: I created a bootable disc for the Acronis recovery software. Managed to boot to Acronis and started the recovery from image file. This fail with some error message (did not manage to record). Something to do with not be able to copy to $AVG folder. Method 3: At this stage, assumed it was still a virus causing the problem so decided to format that partition to remove everything and hopefully the virus too. Had a lot of problems trying to bypass the system to allow me to format but (i think- more on this later) I managed to do that. Image was recovered, thought problem was resolved. Tried to boot windows but new error: Boot Manager is missing. Read up on this and managed to copy the Boot Manager from my Laptop's Manufacturer's partition (partition contains factory setup image file). Windows loaded but new BSOD with 0x000000A problem. Method 4: Attempted to reinstall factory settings but this failed cos i suspect by formating the partition, I may have removed the recovery software. Tried to create a bootable dvd of factory setting but machine is so bad it continues to crash. Bootable dvd method failed. Method 5:Spent alot of time reading up on this error, even installed a software to help scan and fix the problem. Scan failed and software required money! Anyway, lots of BSOD with different error message like 0x00000001A and 0x0000000D1. Error message changes with some reboots. Method 6: Found a hotfix from the windows site to fix 0x0000000A problem, great I thought! In safe mode, I cant install the file cos of error:0x8007043c. Tried to then install the fix in normal mode but installation just hangs. Returned to safe mode and followed advice to bypass 0x8007043c by changing the BITS status (read here: http://www.vistaheads.com/forums/microsoft-public-windowsupdate/181931-error-number-0x8007043c-windows-update.html). However, my machine at this time is so flaky that it hangs everytime i right mouse click the computer icon. I am at my wits end. Ya help or ideas? Cheers

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• Where did my backup files go? Can they be recovered?

  - by Ken

  I just purchased a Western Digital Essential SE 1TB external hard drive from Best Buy at their recommendation. I then exchanged it for a Toshiba Canvio (I think that was the name). I have a Toshiba Qosmio X505-Q898. The Canvio locked up my computer and rewrote some kind of OS file, and erased all the restore points as well as the system image backup (according to Best Buy) just by plugging it in for the first time. Never even got to the install part or anything -- plugged it in and fried my computer. They spent about an hour and a half on my computer and got it back to a somewhat working condition and gave me access to my files. So now they say I have to back it up using my recovery disk and rewriting my OS. Enter the Essential. Brought it home last night, plugged it in and installed everything. Works perfect, no problems. Backed up everything on it. I unplugged and plugged it twice to make sure that everything was on it. Essential told me it had both the HDD and SSD backed up. So I reinstalled my OS. Plugged the Essential in and everything loads right up. Went to retrieve my files and the Western Digital has nothing on it. It shows all my music, pics, ETC. as still being on my computer and needing to be backed up, but since there are no files on my computer now. Where is this information coming from and where did my files go? It's about 810GB worth of files I've amassed over several years. Is there any way to recover data from this? I plan to contact Western Digital and Best Buy, just thought I would check here too. Any advice will be appreciated as a lot of these files are invaluable to me.

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• How Do I Use Multiple Versions of OpenSSL ... One for Apache and one for PHP

  - by Ken S.

  I have an Apache 2.2 (self-compiled version) server that is getting dinged during a PCI scan because it does not support TLS 1.1 or 1.2 ciphers. After some digging I found that the installed version of OpenSSL (0.9.8e) does not contain the newest TLS ciphers. So I went and downloaded and compiled the latest version of OpenSSL (1.0.1c) and have it installed in an alternate location within /opt so it wouldn't interfere with the installed version. What I would like to do is to compile Apache against the 1.0.1 libraries and keep the system-installed libraries for use with PHP, cURL, openssh, etc. I'm hoping that doing it this way will allow Apache to use the newest TLS but not break anything with any other programs that require the old libraries. I thought I could do this by adding an entry in to /etc/ld.so.conf that pointed to the new libraries, but I think this will conflict with the existing ones. i.e. two references to libcrypto could cause everything to have issues. The main reason for doing this is because of issues with PHP cURLing to external servers and having issues with the latest OpenSSL libs thus requiring edits to our PHP code. Would love some guidance on how best to accomplish this.

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• What is a good solution for an intranet video portal (YouTube-like) site?

  - by Ken Pespisa

  I would like an easy-to-setup site to handle videos to be viewed internally by my company. YouTube is essentially the perfect solution except for its being public. I'm looking for a place where a few people can upload videos, and the system will return a page where they can watch that video in a browser. I figure this would involve a dedicated Web server to run the Web application and process the videos. I've searched and I don't think such a system exists, but I perhaps there's one out there in its infancy that doesn't rank high on Google yet. Essentially the site I'm looking for is what MediaWiki is to Wikis, or what StackExchange is to Q&A sites, but for videos. Thanks in advance!

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• How to clear contents of cell in Excel?

  - by Ken

  I've been sent an Excel spreadsheet with a weird first row. Some of the cells say "Column1", "Column2", etc., but I can't delete their contents. If I select the cell and hit backspace, it goes blank, but when I press return, it goes right back to saying "Column1". I found another answer here that suggested this could be caused by "Cell validation", but the validation window says "Any value", and also "show alert" (and I'm not seeing an alert), so I don't think that's it. The first row is white text on a blue background, if that means anything. The spreadsheet was sent to me in XLSX format, but I tried resaving as XLS and opening that, and it seems to make no difference. This is with the "ribbon" version of Excel (they got rid of the Help menu so I don't know how to see what version number it is!). Thanks!

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• How Would I Restrict a Linux Binary to a Limited Amount of RAM?

  - by Ken S.

  I would like to be able to limit an installed binary to only be able to use up to a certain amount of RAM. I don't want it to get killed if it exceeds it, only that that would be the max amount that it could use. The problem I am facing is that I am running an Apache 2.2 server with PHP and some custom code that a developer is writing for us. The problem is that somewhere in there code they launch a PHP exec call that launches ImageMagick's 'convert' to create a resized image file. I'm not privy to a lot of details to the project or the code, but need to find a solution to keep them from killing the server until they can find a way to optimize the code. I had thought that I could do this with /etc/security/limits.conf and setting a limit on the apache user, but it seems to have no effect. This is what I used: www-data hard as 500 If I understand it correctly, this should have limited any apache user process to a maximum to 500kb, however, when I ran a test script that would chew up a lot of RAM, this actually got up to 1.5GB before I killed it. Here is the output of 'ps auxf' after the setting change and a system reboot: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 5268 0.0 0.0 401072 10264 ? Ss 15:28 0:00 /usr/sbin/apache2 -k start www-data 5274 0.0 0.0 402468 9484 ? S 15:28 0:00 \_ /usr/sbin/apache2 -k start www-data 5285 102 9.4 1633500 1503452 ? Rl 15:29 0:58 | \_ /usr/bin/convert ../tours/28786/.…. www-data 5275 0.0 0.0 401072 5812 ? S 15:28 0:00 \_ /usr/sbin/apache2 -k start Next I thought I could do it with Apache's RlimitMEM setting, but get the same result of it not getting limited. Here is what I have in my apache.conf file: RLimitMEM 500000 512000 It wasn't until many hours later that I figured out that if the process actually reached that amount that it would die with an OOM error. Would love any ideas on how to set this limit so other things could function on the server, and all of them could play together nicely.

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• Why can't I share a folder on Vista?

  - by Ken

  On Windows Vista, I right-click on a folder, Properties, Sharing tab, and either "Advanced Sharing" or "Share"-"Share" causes an error: Windows File Sharing This program will not run Access is denied. Close My user account is an "administrator" on this machine. I think this behavior changed since my computer was added to the new domain recently. I have other folders shared (from long ago), and they continue to be shared just fine.

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• What is a good solution for an intranet video portal (YouTube-like) site? [closed]

  - by Ken Pespisa

  I would like an easy-to-setup site to handle videos to be viewed internally by my company. YouTube is essentially the perfect solution except for its being public. I'm looking for a place where a few people can upload videos, and the system will return a page where they can watch that video in a browser. I figure this would involve a dedicated Web server to run the Web application and process the videos. I've searched and I don't think such a system exists, but I perhaps there's one out there in its infancy that doesn't rank high on Google yet. Essentially the site I'm looking for is what MediaWiki is to Wikis, or what StackExchange is to Q&A sites, but for videos.

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• Why can't I share a folder on Vista?

  - by Ken

  On Windows Vista, I right-click on a folder, Properties, Sharing tab, and either "Advanced Sharing" or "Share"-"Share" causes an error: Windows File Sharing This program will not run Access is denied. Close My user account is an "administrator" on this machine. I think this behavior changed since my computer was added to the new domain recently. I have other folders shared (from long ago), and they continue to be shared just fine.

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• Can I access mac iTunes library from an iPad?

  - by Ken

  Can I access my iMac based iTunes library from my iPad over my home wifi? I know I can sync them up but the library is too big. Edit; just to clear(er), the movies, podcasts etc which are stored on the iMac, I want to watch them on my iPad without syncing. I know I can create playlist to sync a subset of my library, but that is not what I want. What I'm thinking about is using my iPad as a kind of portable apple TV.

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• What are possible reasons why a calendar entry in OWA is at a different time than in Outlook?

  - by Ken Pespisa

  We have two Exchange 2003 servers, our primary server and a front-end server that hosts Outlook Web Access (OWA). When I open my boss' calendar via Outlook 2007 (from my Outlook client as well as hers) I see the event scheduled for 10:30 am. When I open her calendar via Outlook Web Access, the same event is scheduled for 4:30 am. I don't understand Exchange well-enough to imagine how this is possible. If you have any ideas why this could be happening, I greatly appreciate it. I'd also very much appreciate any insight you have to how this could be possible. There must be some cached data on the front-end server that causes the calendar entry to appear at a different time, I suppose. Any insight into how Exchange manages that cache and where I could look for an issue would be very helpful. Thank you!

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• processing of Group Policy failed only on 2008 Servers and Name Resolution failure on the current domain controller

  - by Ken Wolfrom

  Spent last 3 months doing a upgrade from 2003 domain to a 2008R2 domain. our last DC was rebuilt (5 total) and brought up on line. After it was put on line we have some 2008 and 2008R2 servers (10 now) getting these errors in the event logs. ERRORS Description: The processing of Group Policy failed. Windows could not resolve the user name. This could be caused by one of more of the following: a) Name Resolution failure on the current domain controller. b) Active Directory Replication Latency (an account created on another domain controller has not replicated to the current domain controller).\ Can duplicate this if we drop to command prompt and run GPUPDATE manually When our users attempt to do a \directory\shared access to shared drive on an affected server get this error.– “THERE ARE CURRETLY NO LOGON SERVER AVAIALBE TO SERICE THE LOGON REQUEST. This is only affecting the 2008 OS and it is a random set of abotu 10 servers out of some 30 with this OS. The Services on the machines are running Ok and login. Able to log in with domain/user to the consoles and via RDP. WE can log onto an affected machine, and can get to the \domainname\sysvol and can see the GPO's Have checked the replication topology of the domain and it states all servers can replicate with no errrors. We went back to the last DC, demoted it, removed DNS and then removed it from the domain and waited 24 hours and issue still persist. Picked one server, removed it from domain, reboooted, and added back to domain with no problems, but still has this behavior. bottom line is we have some servers that the domain will not let any UDP/client server apps or GPO's process ,but the tcp related items seeme to work fine, http, tcp calls, sql and oracle dbs's connect and process. Any inputs on some possible reasons for this issue and fixes. It is only affecting the 2008 servers on a 2008R2 domain.

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• BitBlt code not working

  - by MusiGenesis

  I'm trying to use this code to draw a Bitmap directly onto a PictureBox: Bitmap bmp = (Bitmap)Bitmap.FromFile(@"C:\Users\Ken\Desktop\Load2.bmp"); Graphics grDest = Graphics.FromHwnd(pictureBox1.Handle); Graphics grSrc = Graphics.FromImage(bmp); IntPtr hdcDest = grDest.GetHdc(); IntPtr hdcSrc = grSrc.GetHdc(); BitBlt(hdcDest, 0, 0, pictureBox1.Width, pictureBox1.Height, hdcSrc, 0, 0, (uint)TernaryRasterOperations.SRCCOPY); // 0x00CC0020 grDest.ReleaseHdc(hdcDest); grSrc.ReleaseHdc(hdcSrc); but instead of rendering the Bitmap's contents it just draws a solid block of nearly-black. I'm pretty sure the problem is with the source hDC, because if I change SRCCOPY to WHITENESS in the above code, it draws a solid white block, as expected. Note: this next snippet works fine, so there's nothing wrong with the bitmap itself: Bitmap bmp = (Bitmap)Bitmap.FromFile(@"C:\Users\Ken\Desktop\Load2.bmp"); pictureBox1.Image = bmp;

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• How to use a LinkButton inside gridview to delete selected username in the code-behind file?

  - by jenifer

  I have a "UserDetail" table in my "JobPost.mdf". I have a "Gridview1" showing the column from "UserDetail" table,which has a primary key "UserName". This "UserName" is originally saved using Membership class function. Now I add a "Delete" linkbutton to the GridView1. This "Delete" is not autogenerate button,I dragged inside the column itemtemplate from ToolBox. The GridView1's columns now become "Delete_LinkButton"+"UserName"(within the UserDetail table)+"City"(within the UserDetail table)+"IsAdmin"(within the UserDetail table) What I need is that by clicking this "delete_linkButton",it will ONLY delete the entire User Entity on the same row (link by the corresponding "UserName") from the "UserDetail" table,as well as delete all information from the AspNetDB.mdf (User,Membership,UserInRole,etc). I would like to fireup a user confirm,but not mandatory. At least I am trying to make it functional in the correct way. for example: Command UserName City IsAdmin delete ken Los Angles TRUE delete jim Toronto FALSE When I click "delete" on the first row, I need all the record about "ken" inside the "UserDetail" table to be removed. Meanwhile, all the record about "ken" in the AspNetDB.mdf will be gone, including UserinRole table. I am new to asp.net, so I don't know how to pass the commandargument of the "Delete_LinkButton" to the code-behind file LinkButton1_Click(object sender, EventArgs e), because I need one extra parameter "UserName". My partial code is listed below: <asp:TemplateField> <ItemTemplate> <asp:LinkButton ID="Delete_LinkButton" runat="server" onclick="LinkButton1_Click1" CommandArgument='<%# Eval("UserName","{0}") %>'>LinkButton</asp:LinkButton> </ItemTemplate> </asp:TemplateField> protected void Delete_LinkButton_Click(object sender, EventArgs e) { ((LinkButton) GridView1.FindControl("Delete_LinkButton")).Attributes.Add("onclick", "'return confirm('Are you sure you want to delete {0} '" + UserName); Membership.DeleteUser(UserName); JobPostDataContext db = new JobPostDataContext(); var query = from u in db.UserDetails where u.UserName == UserName select u; for (var Item in query) { db.UserDetails.DeleteOnSubmit(Item); } db.SubmitChanges(); } Please do help! Thanks in advance.

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• Master database Compatibility level after an In-place Upgrade

  - by Jonathan Kehayias

  Yesterday a forums member asked why sys.dm_exec_sql_text() wouldn’t work on one instance of SQL where he was a sysadmin while the same code worked correctly on another instance of SQL.  The initial thought was that it was some kind of permissions issue.  Ken Simmons ( blog / twitter ) pointed out that the compatibility level of the database would affect the ability to use this DMF and that running it from a database at 80 compatibility would fail.  It turns out the person was running...(read more)

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• Google I/O 2012 - SQL vs NoSQL: Battle of the Backends

  Google I/O 2012 - SQL vs NoSQL: Battle of the Backends Ken Ashcraft, Alfred Fuller Google App Engine now offers both SQL and NoSQL data storage -- but which is right for your application? Advocates of each try to settle the issue once and for all, and show some of the tricks for getting the most out of each. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 2394 38 ratings Time: 43:09 More in Science & Technology

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• Using Online Backup Software for Remote Workers

  More and more companies are giving workers laptops and sending them in the field. In fact, laptops and netbooks actually outsold desktops last year. Good new for those of you that love the mobility, ... [Author: Ken Totura - Computers and Internet - April 01, 2010]

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• Facebook veut analyser les mouvements du curseur sur l'écran, la technologie est déjà en phase de tests

  Facebook veut analyser les mouvements du curseur sur l'écran, la technologie est déjà en phase de tests Ken Rudin, le directeur de l'analyse et de l'exploitation des données pour Facebook, a confié au Wall Street Journal que des tests sont en cours sur de nouvelles techniques d'observation du comportement des usagers. Tout d'abord Facebook a l'intention de traquer les habitudes de ses utilisateurs en suivant à la trace les mouvements du curseur de la souris lors de leurs passages sur le réseau...

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• Could not load file or assembly FSharp.Core, Version=4.0.0.0

  - by Ken

  I'm trying to deploy a web application which uses F# 4.0 on Windows Server 2008. It works on my computer where VS2010 is installed but it doesn't work on the server. Everytime you open the page you'll get this error message: Could not load file or assembly 'FSharp.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. I've installed .NET 4 using the web platform installer. F# PowerPack is installed too. I found this page: http://connect.microsoft.com/VisualStudio/feedback/details/507202/error-in-working-with-f It suggests you to reinstall F#, but the link to download F# seems to be broken. And it might not be the same problem I have. I've also tried to install Microsoft F# 2.0.0.0 since it's the only F# redistribution I could find. But it doesn't help at all. Has anyone get something like this to work? Any help would be appreciated. Thanks.

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• Best practices for using the Entity Framework with WPF DataBinding

  - by Ken Smith

  I'm in the process of building my first real WPF application (i.e., the first intended to be used by someone besides me), and I'm still wrapping my head around the best way to do things in WPF. It's a fairly simple data access application using the still-fairly-new Entity Framework, but I haven't been able to find a lot of guidance online for the best way to use these two technologies (WPF and EF) together. So I thought I'd toss out how I'm approaching it, and see if anyone has any better suggestions. I'm using the Entity Framework with SQL Server 2008. The EF strikes me as both much more complicated than it needs to be, and not yet mature, but Linq-to-SQL is apparently dead, so I might as well use the technology that MS seems to be focusing on. This is a simple application, so I haven't (yet) seen fit to build a separate data layer around it. When I want to get at data, I use fairly simple Linq-to-Entity queries, usually straight from my code-behind, e.g.: var families = from family in entities.Family.Include("Person") orderby family.PrimaryLastName, family.Tag select family; Linq-to-Entity queries return an IOrderedQueryable result, which doesn't automatically reflect changes in the underlying data, e.g., if I add a new record via code to the entity data model, the existence of this new record is not automatically reflected in the various controls referencing the Linq query. Consequently, I'm throwing the results of these queries into an ObservableCollection, to capture underlying data changes: familyOC = new ObservableCollection<Family>(families.ToList()); I then map the ObservableCollection to a CollectionViewSource, so that I can get filtering, sorting, etc., without having to return to the database. familyCVS.Source = familyOC; familyCVS.View.Filter = new Predicate<object>(ApplyFamilyFilter); familyCVS.View.SortDescriptions.Add(new System.ComponentModel.SortDescription("PrimaryLastName", System.ComponentModel.ListSortDirection.Ascending)); familyCVS.View.SortDescriptions.Add(new System.ComponentModel.SortDescription("Tag", System.ComponentModel.ListSortDirection.Ascending)); I then bind the various controls and what-not to that CollectionViewSource: <ListBox DockPanel.Dock="Bottom" Margin="5,5,5,5" Name="familyList" ItemsSource="{Binding Source={StaticResource familyCVS}, Path=., Mode=TwoWay}" IsSynchronizedWithCurrentItem="True" ItemTemplate="{StaticResource familyTemplate}" SelectionChanged="familyList_SelectionChanged" /> When I need to add or delete records/objects, I manually do so from both the entity data model, and the ObservableCollection: private void DeletePerson(Person person) { entities.DeleteObject(person); entities.SaveChanges(); personOC.Remove(person); } I'm generally using StackPanel and DockPanel controls to position elements. Sometimes I'll use a Grid, but it seems hard to maintain: if you want to add a new row to the top of your grid, you have to touch every control directly hosted by the grid to tell it to use a new line. Uggh. (Microsoft has never really seemed to get the DRY concept.) I almost never use the VS WPF designer to add, modify or position controls. The WPF designer that comes with VS is sort of vaguely helpful to see what your form is going to look like, but even then, well, not really, especially if you're using data templates that aren't binding to data that's available at design time. If I need to edit my XAML, I take it like a man and do it manually. Most of my real code is in C# rather than XAML. As I've mentioned elsewhere, entirely aside from the fact that I'm not yet used to "thinking" in it, XAML strikes me as a clunky, ugly language, that also happens to come with poor designer and intellisense support, and that can't be debugged. Uggh. Consequently, whenever I can see clearly how to do something in C# code-behind that I can't easily see how to do in XAML, I do it in C#, with no apologies. There's been plenty written about how it's a good practice to almost never use code-behind in WPF page (say, for event-handling), but so far at least, that makes no sense to me whatsoever. Why should I do something in an ugly, clunky language with god-awful syntax, an astonishingly bad editor, and virtually no type safety, when I can use a nice, clean language like C# that has a world-class editor, near-perfect intellisense, and unparalleled type safety? So that's where I'm at. Any suggestions? Am I missing any big parts of this? Anything that I should really think about doing differently?

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• Accessing Oracle DB through SQL Server using OPENROWSET

  - by Ken Paul

  I'm trying to access a large Oracle database through SQL Server using OPENROWSET in client-side Javascript, and not having much luck. Here are the particulars: A SQL Server view that accesses the Oracle database using OPENROWSET works perfectly, so I know I have valid connection string parameters. However, the new requirement is for extremely dynamic Oracle queries that depend on client-side selections, and I haven't been able to get dynamic (or even parameterized) Oracle queries to work from SQL Server views or stored procedures. Client-side access to the SQL Server database works perfectly with dynamic and parameterized queries. I cannot count on clients having any Oracle client software. Therefore, access to the Oracle database has to be through the SQL Server database, using views, stored procedures, or dynamic queries using OPENROWSET. Because the SQL Server database is on a shared server, I'm not allowed to use globally-linked databases. My idea was to define a function that would take my own version of a parameterized Oracle query, make the parameter substitutions, wrap the query in an OPENROWSET, and execute it in SQL Server, returning the resulting recordset. Here's sample code: // db is a global variable containing an ADODB.Connection opened to the SQL Server DB // rs is a global variable containing an ADODB.Recordset . . . ss = "SELECT myfield FROM mytable WHERE {param0} ORDER BY myfield;"; OracleQuery(ss,["somefield='" + somevalue + "'"]); . . . function OracleQuery(sql,params) { var s = sql; var i; for (i = 0; i < params.length; i++) s = s.replace("{param" + i + "}",params[i]); var e = "SELECT * FROM OPENROWSET('MSDAORA','(connect-string-values)';" + "'user';'pass','" + s.split("'").join("''") + "') q"; try { rs.Open("EXEC ('" + e.split("'").join("''") + "')",db); } catch (eobj) { alert("SQL ERROR: " + eobj.description + "\nSQL: " + e); } } The SQL error that I'm getting is Ad hoc access to OLE DB provider 'MSDAORA' has been denied. You must access this provider through a linked server. which makes no sense to me. The Microsoft explanation for this error relates to a registry setting (DisallowAdhocAccess). This is set correctly on my PC, but surely this relates to the DB server and not the client PC, and I would expect that the setting there is correct since the view mentioned above works. One alternative that I've tried is to eliminate the enclosing EXEC in the Open statement: rs.Open(e,db); but this generates the same error. I also tried putting the OPENROWSET in a stored procedure. This works perfectly when executed from within SQL Server Management Studio, but fails with the same error message when the stored procedure is called from Javascript. Is what I'm trying to do possible? If so, can you recommend how to fix my code? Or is a completely different approach necessary? Any hints or related information will be welcome. Thanks in advance.

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• Streaming a webcam from Silverlight 4 (Beta)

  - by Ken Smith

  The new webcam stuff in Silverlight 4 is darned cool. By exposing it as a brush, it allows scenarios that are way beyond anything that Flash has. At the same time, accessing the webcam locally seems like it's only half the story. Nobody buys a webcam so they can take pictures of themselves and make funny faces out of them. They buy a webcam because they want other people to see the resulting video stream, i.e., they want to stream that video out to the Internet, a lay Skype or any of the dozens of other video chat sites/applications. And so far, I haven't figured out how to do that with It turns out that it's pretty simple to get a hold of the raw (Format32bppArgb formatted) bytestream, as demonstrated here. But unless we want to transmit that raw bytestream to a server (which would chew up way too much bandwidth), we need to encode that in some fashion. And that's more complicated. MS has implemented several codecs in Silverlight, but so far as I can tell, they're all focused on decoding a video stream, not encoding it in the first place. And that's apart from the fact that I can't figure out how to get direct access to, say, the H.264 codec in the first place. There are a ton of open-source codecs (for instance, in the ffmpeg project here), but they're all written in C, and they don't look easy to port to C#. Unless translating 10000+ lines of code that look like this is your idea of fun :-) const int b_xy= h->mb2b_xy[left_xy[i]] + 3; const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1; *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]; *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]; h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)]; h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)]; The mooncodecs folder within the Mono project (here) has several audio codecs in C# (ADPCM and Ogg Vorbis), and one video codec (Dirac), but they all seem to implement just the decode portion of their respective formats, as do the java implementations from which they were ported. I found a C# codec for Ogg Theora (csTheora, http://www.wreckedgames.com/forum/index.php?topic=1053.0), but again, it's decode only, as is the jheora codec on which it's based. Of course, it would presumably be easier to port a codec from Java than from C or C++, but the only java video codecs that I found were decode-only (such as jheora, or jirac). So I'm kinda back at square one. It looks like our options for hooking up a webcam (or microphone) through Silverlight to the Internet are: (1) Wait for Microsoft to provide some guidance on this; (2) Spend the brain cycles porting one of the C or C++ codecs over to Silverlight-compatible C#; (3) Send the raw, uncompressed bytestream up to a server (or perhaps compressed slightly with something like zlib), and then encode it server-side; or (4) Wait for someone smarter than me to figure this out and provide a solution. Does anybody else have any better guidance? Have I missed something that's just blindingly obvious to everyone else? (For instance, does Silverlight 4 somewhere have some classes I've missed that take care of this?)

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• Orientation in a UIView added to a UIWindow

  - by Ken

  OK, bear with me. I have a UIView which is supposed to cover the whole device (UIWindow) to support an image zoom in/out effect I'm doing using core animation where a user taps a button on a UITableViewCell and I zoom the associated image. The zooming is performing flawlessly, what I haven't been able to figure out is why the subview is still in portrait mode even though the device is in landscape. An illustration below: http://www.weeshsoft.com/images/IMG_0482.jpg I do have a navigation controller but this view has been added to the UIWindow directly. Signed, Baffled in Atlanta

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• Is there a fully-functional dropdown replacement for HTML SELECT that works in IE?

  - by Ken Paul

  We determined in a previous question that many features of HTML SELECTs are not supported in IE. Is there an alternative widget that you would recommend from your experience that meets the following requirements? Respects the contentEditable property (does not allow selection changes if true) Respects the disabled property of individual OPTIONs (shows them "grayed out" or with strike-through font, and makes them un-selectable) Supports Option Groups (OPTGROUP elements) Supports style options such as border and margin in the SELECT and all sub-elements Supports dynamic add and delete of OPTION and OPTGROUP elements Supports the above in IE version 6 and above EDIT: As noted by @Joel Coehoorn, items 3 and 5 above are currently supported in IE. They are included here to make sure they are not overlooked in a replacement widget.

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• Remove redundant CSS rules

  - by ken

  I have several CSS files all being used in a large application; most are legacy, with one "main" css file that is the most current. This setup came about after a rebranding, and instead of redoing all of the CSS, we simply added a new CSS file that would override the rules from the legacy files. So now, I'd like to distill all of this CSS (1000's of lines) into 1 file. NOTE: I don't want to simply combine the files (as in copy/pasting them all into 1 file); I need an application to semi-intelligently look at the rules, reduce them down to only the effective rules (after inheritance), but I can't find anything like that. Example; given: /* legacy.css */ .foo { color: red; margin: 5px; } ..and: /* current.css */ .foo { margin: 10px; } I need a tool to output: /* result.css */ .foo { color: red; margin: 10px; } Does such an application exist?

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