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KB961894 – VC++ Post 2005 SP1 Redistributable
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A Hotfix is a product update package with one or more updated product files that fix a specific product problem.
Please be aware this Hotfix has not gone through full Microsoft product regression testing nor has it been tested in combination with other Hotfixes.
Please carefully review the associated Hotfix KB article to verify the fix is the one needed and there are no known compatibility or installation issues. You may also want to contact a Microsoft Support Professional at
Additional Information about the issue resolved by this Hotfix can be found in its Knowledge Base article at
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Jan 13 2009 at 2:12 AM
, version 2
Feb 26 2009 at 6:51 AM
I installed this hotfix because an application was crashing. The hotfix solved the problem with that application, but later I noted that many applications incl. IE7, Word, Outlook and others started to crash under various circumstances. I also had a previous version of VC2005 installed. I tried to uninstall all VC2005 from 'Add/remove probrams', but it does not actually uninstall the dlls from the WinSxS directory and they are still in use.
My OS is Windows Server 2008.
How can I uninstall this hotfix ?
Mar 6 2009 at 5:35 PM
hello, It works fine for me - so far!
The symptom was that Paint Shop Pro X2 crashed before, it works fine now.
I don't know if it will help anyone, but Paint Shop Pro X2 worked fine before I installed Skype 4.0, Adobe ConnectNow Add-in, SqueezeCenter 7.3.2, Microsoft Silverlight, Windows Live sign-in Assistant. I also had a series of Windows updates for Office 2007, Media Center, and Windows since the 10th of Feb (PSP X2 worked fine) and today 06th of Feb, when I notice PSP X2 crashes.
To answer to vlad's post, apparently I can uninstall this hot fix from Vista's Uninstall or change program dialog, item: "Microsoft Visual C++ 2005 Redistributable". I didn't try, but I can see it.
Mar 23 2009 at 3:14 PM
I did install this hotfix also for Corel WINDVD 9 crapping with MFC error. The fix did resolve the issue with WINDVD, but then, the fix introduced other problems in other applications, WINDOWS MEDIA PLAYER as an example where it lost the AMBIENCE display. I get a black screen this time. I still have not checked the other applications that may also have been affected.
Jul 30 2009 at 7:00 PM
Installed fix, program (Adobe LiveCycle 8.0) then worked, have to test other areas to see if there is a further problem due to install.
Sep 3 2009 at 1:41 AM
YEA IT WORKS! After reinstalling Acrobat and then trying window updates, finally installed this and LIVE CYCLE works.. thanks.. was really in a bind...
Sep 6 2009 at 4:53 PM
This fix worked perfectly!! I was unable to update my ATI Software for my video cards and after running this fix it worked like a charm! Thanks MSDN!
Sep 14 2009 at 10:34 AM
Worked for me too on the ATI installer issue. Cheers.
Sep 27 2009 at 11:55 PM
Worked for me for ATI Radeon v9.9 [11.09.2009] driver installation problem.
Oct 4 2009 at 6:28 PM
IC Recorder Software of Sony..
HT eproblem did resolved after installing this.
Oct 14 2009 at 3:23 PM
This fix worked. My Config.: Windows 7, VS2008; windows halt problem when i try install ATI software and navigate me to http://support.microsoft.com/kb/961894. Now I able to install ATI Software for my video cards.
Oct 27 2009 at 7:23 PM
This worked perfectly for me. I had Vista x64 and was upgrading to Windows 7 x64. After the upgrade, ATI Catalyst Control Center would not install. After installing this hotfix, the install completed successfully. I was concerned about possible incompatabilities with other s/w on my machine, but I've had no problems with Visual Studio 2008, SQL Server 2008, or Office 2007.
Nov 3 2009 at 1:47 PM
APPCRASH in CorelDRW.exe 126.96.36.1997 (CorelDRAW X4)
Windows Vista detected the issue and pointed me to the fix. I've tried running my most important applications and have encountered no problems yet, these are:
Windows Vista SP2 base system, before hotfix.
Windows Media Player
Windows Media Center
Visual Studio 2008 SP1
Microsoft Expression Blend 2
Internet Explorer 8.0
Nov 14 2009 at 8:50 AM
wow! it has fixed prob with catalyst. thx!
Dec 15 2009 at 4:32 AM
Fixed my problem with Paint Shop Pro X2 crashing on mfc80.dll. My Media Player still seems to work. I was going to say that my Outlook is working, except I have an older version so that probably doesn't say much. I haven't installed anything recently, so it must be some sort of automated install that changed something.
Dec 20 2009 at 11:59 PM
Worked! fixed problem with ATI )
Jan 30 2010 at 12:45 AM
fixed problem with ati! :)
Feb 6 2010 at 11:22 PM
I contacted Microsoft and the said it was not avalible. I really need to update my ATI video and chipset drivers...
Feb 17 2010 at 8:56 PM
This hotfix solved my problem with installing ATI Drivers for my 5850 in Windows 7 64bit.
Feb 20 2010 at 5:09 PM
This hotfix solved my problem with installing ATI Drivers for my 3870 in Windows 7 64bit.
Mar 6 2010 at 8:48 PM
I also have ATI driver problems with the exact error described here, on a new Win7 64-bit system. But the install of VS90-KB946344.exe did absolutely nothing - in fact, checking side-by-side versions, it quite literally did nothing, despite completing successfully - no new versions were installed. I had to find the vcredist_x64.exe and run that. I do not have VS2005 installed, but do have sql 2008. the VS90-KB946344.exe update is the one for systems without vs2005. I do however have vs2008. Apparently the 2005 installs should also be named as the right ones for anybody with VS2008, because that's what finally worked.
Apr 15 2010 at 4:48 AM
I had ATI driver problems as well, I installed this, plus the VS2008 redistributable. One of the two fixed the problem.
Apr 15 2010 at 4:42 PM
I had an issue with SQLServer Express 2008 installation. It was failing/crashing during the "Setup Support Files" installation giving me the following error:
Product: Microsoft SQL Server 2008 Setup Support Files -- Error 1935. An error occurred during the installation of assembly 'Microsoft.VC80.CRT,version="8.0.50727.1833",publicKeyToken="1fc8b3b9a1e18e3b",processorArchitecture="x86",type="win32"'. Please refer to Help and Support for more information. HRESULT: 0x800736B3
The hotfix got me past this issue. I ran into this issue after uninstalling SSMSE2005 (I think that was the cause). I hope this helps someone - it took me days to find this hotfix.
I haven't checked if the hotfix has created issues in other programs - the hotfix did make changes to winsxs folder.
Jun 18 2010 at 10:09 PM
This fix has NOT worked for me. I'm trying to install ATI CCC 10.6 and all it does it just hang, then after a while it silently closes. I have installed this hotfix AND the VC++ 2008 Redistributable, and neither worked. I have not idea what's going on, nor what to do to fix it. I have been without my computer for almost a week now. This is extremely frustrating. Anyone have any other ideas?
Aug 5 2010 at 12:42 PM
I cannot download the CCC either on my Win7 machine but the built in Win7 works great for multiple monitors and projectors. I have switched to using what is built in.
Aug 27 2010 at 8:19 AM
I landed here because I could not run the installer for my ATI Radeon graphics card driver (ATI Catalyst 10.7) on Windows Vista 64bit. This hotfix solved my problem. The fix was actually suggested by the Microsoft solution wizard. Good job, Windows!
Sep 8 2010 at 11:19 PM
Pretty much the same story as the last fellow, only ATI Radeon HD 4XXX / Catalyst 10.8 / Windows 7 x64. Kudos Microsoft solution wizard, it's always a pleasant surprise when you hit the jackpot!
Oct 4 2010 at 2:32 PM
In order to install AMD/ATI Catalyst 10.9 drivers on Windows 7 x64 I had to install this hotfix though I had VS2008 already installed.
Just makes me wonder why the hell is ATI installer relying on such outdated libraries when VS2010 is already starting to replace VS2008...
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Mon Jan 12 2009 at 8:00 AM
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