Symptoms
You install a product that updates the Mfc80.dll module or the Mfc80u.dll module on the computer from version 8.0.50727.870 to version 8.0.50727.3078. For example, you install Microsoft SQL Server 2008. When you run an application that is built with Microsoft Visual Studio 2005, an access violation occurs in the Mfc80.dll module or in the Mfc80u.dll module. And, the application crashes.Note This problem applies to many other applications, including applications that are used on Windows 7.
Cause
This problem occurs because the two versions are incompatible.
Resolution
Resolution for computers that do not have Visual Studio 2005 installed
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix. To download this hotfix from the MSDN Code Gallery, visit the following Microsoft website:
http://code.msdn.microsoft.com/KB961894 Note The MSDN Code Gallery displays the languages for which the hotfix is available. If you do not see your language listed, it is because the Code Gallery resource page is not available for that language. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=supportNote For x86-based versions of Windows, select the packages ending with "_x86." For x64-based versions of Windows, select the packages ending with "_x64" for 64-bit applications and the packages ending with "_x86" for 32-bit applications. Additionally, select the appropriate localization based on the following key:
- 
                  
CHSSimplified Chinese
 - 
                  
CHTTraditional Chinese
 - 
                  
ENUEnglish
 - 
                  
FRAFrench
 - 
                  
GERGerman
 - 
                  
ITAItalian
 - 
                  
JPNJapanese
 - 
                  
KORKorean
 - 
                  
SPASpanish
 
Prerequisites
There are no prerequisites.
Restart requirement
You do not have to restart the computer after you apply this hotfix.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
| 
                           File name  | 
                        
                           File version  | 
                        
                           File size  | 
                        
                           Date  | 
                        
                           Time  | 
                        
                           Platform  | 
                      
|---|---|---|---|---|---|
| 
                           Atl80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           96,256  | 
                        
                           24-Oct- 2008  | 
                        
                           18:31  | 
                        
                           x86  | 
                      
| 
                           Atl80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           114,688  | 
                        
                           24-Oct- 2008  | 
                        
                           19:07  | 
                        
                           x86  | 
                      
| 
                           Atl80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           96,256  | 
                        
                           24-Oct- 2008  | 
                        
                           19:07  | 
                        
                           x86  | 
                      
| 
                           Atl80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           113,152  | 
                        
                           24-Oct- 2008  | 
                        
                           19:18  | 
                        
                           x64  | 
                      
| 
                           Atl80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           113,152  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,658,880  | 
                        
                           24-Oct- 2008  | 
                        
                           19:53  | 
                        
                           x64  | 
                      
| 
                           Mfc80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,105,920  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,105,920  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,658,880  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80chs.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           33,280  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80chs.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           40,960  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80chs.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           40,960  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80chs.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           33,280  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80cht.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           33,792  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80cht.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           45,056  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80cht.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           45,056  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80cht.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           33,792  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80deu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           54,272  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80deu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,536  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80deu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,536  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80deu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           54,272  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80enu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           47,104  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80enu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           57,344  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80enu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           57,344  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80enu.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           47,104  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80esp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           51,712  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80esp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80esp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80esp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           51,712  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80fra.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           52,736  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80fra.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80fra.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80fra.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           52,736  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80ita.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           52,224  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80ita.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80ita.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           61,440  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80ita.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           52,224  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80jpn.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           38,912  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80jpn.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           49,152  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80jpn.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           49,152  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80jpn.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           38,912  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80kor.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           38,400  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80kor.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           49,152  | 
                        
                           24-Oct- 2008  | 
                        
                           20:12  | 
                        
                           x86  | 
                      
| 
                           Mfc80kor.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           49,152  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80kor.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           38,400  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfc80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,655,296  | 
                        
                           24-Oct- 2008  | 
                        
                           19:54  | 
                        
                           x64  | 
                      
| 
                           Mfc80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,093,120  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,093,120  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfc80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           1,655,296  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
| 
                           Mfcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,024  | 
                        
                           24-Oct- 2008  | 
                        
                           19:55  | 
                        
                           x64  | 
                      
| 
                           Mfcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           69,632  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,024  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x64  | 
                      
| 
                           Mfcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           69,632  | 
                        
                           25-Oct- 2008  | 
                        
                           02:12  | 
                        
                           x86  | 
                      
| 
                           Mfcm80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           63,488  | 
                        
                           24-Oct- 2008  | 
                        
                           19:55  | 
                        
                           x64  | 
                      
| 
                           Mfcm80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           57,856  | 
                        
                           24-Oct- 2008  | 
                        
                           20:30  | 
                        
                           x86  | 
                      
| 
                           Mfcm80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           57,856  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x86  | 
                      
| 
                           Mfcm80u.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           63,488  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x64  | 
                      
| 
                           Msvcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           479,232  | 
                        
                           24-Oct- 2008  | 
                        
                           19:06  | 
                        
                           x86  | 
                      
| 
                           Msvcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           515,072  | 
                        
                           24-Oct- 2008  | 
                        
                           19:16  | 
                        
                           x64  | 
                      
| 
                           Msvcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           479,232  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x86  | 
                      
| 
                           Msvcm80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           515,072  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x64  | 
                      
| 
                           Msvcr80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           803,656  | 
                        
                           25-Oct- 2008  | 
                        
                           01:21  | 
                        
                           x64  | 
                      
| 
                           Msvcr80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           633,672  | 
                        
                           25-Oct- 2008  | 
                        
                           01:27  | 
                        
                           x86  | 
                      
| 
                           Msvcr80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           803,656  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x64  | 
                      
| 
                           Msvcr80.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           633,672  | 
                        
                           25-Oct- 2008  | 
                        
                           02:11  | 
                        
                           x86  | 
                      
| 
                           Vcomp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           87,552  | 
                        
                           24-Oct- 2008  | 
                        
                           19:58  | 
                        
                           x64  | 
                      
| 
                           Vcomp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,536  | 
                        
                           24-Oct- 2008  | 
                        
                           20:42  | 
                        
                           x86  | 
                      
| 
                           Vcomp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           65,536  | 
                        
                           24-Oct- 2008  | 
                        
                           20:42  | 
                        
                           x86  | 
                      
| 
                           Vcomp.dll  | 
                        
                           8.0.50727.3079  | 
                        
                           87,552  | 
                        
                           24-Oct- 2008  | 
                        
                           23:30  | 
                        
                           x64  | 
                      
Resolution for computers that have Visual Studio 2005 installed
To resolve this problem on a computer that has Visual Studio 2005 installed, apply the hotfix that is described in KB 958036. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.