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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

Issue Description

Update for Visual Studio 2008 SP1 Debugger

Additional Information about the issue resolved by this Hotfix can be found in its Knowledge Base article at

Additional Hotfixes
Search the list of all other publicly available Visual Studio and .NET Framework Hotfixes at*
Last edited Aug 25 2009 at 11:11 PM  by DDHotfix, version 4
OldProgammer wrote  May 5 2009 at 7:07 PM  
What is this hotfix for and how does it differ from the hotfix KB957912 - Update for Visual Studio 2008 SP1 Debugging and Breakpoints?

clively wrote  Jun 12 2009 at 3:08 PM  
Exactly what is this supposed to fix? Thanks,.

JimGries wrote  Jun 23 2009 at 2:42 PM  
This QFE fixes three complete separate issues in the VS2008 SP1 Debugger:
- Debugger can hang the IDE after setting a breakpoint when working with a large C++ project
- Breakpoints do not bind correctly when an MSIL file is built containing .line directives
- VS crashes when debugging a classic ASP web and debugging is stopped.

Tadeu wrote  Aug 6 2009 at 7:15 PM  
Didn't work for me... I've installed this and KB957912 too. Setting a breakpoint still hangs when debugging C++ code, specially in multi-line expressions and templated methods. BTW, the breakpoint red icon sometimes appears with some black dots around it when it happens.

The only think that it fixed is that when I kill the application being debugged, the IDE comes back to normal (before, it kept hanging even after killing the application being debugged).

Monsignor wrote  May 30 2011 at 10:11 AM  
This one helped me to fix VS2008 debugger crash in vsdebug.dll.

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