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Visual Studio 2005 crashing while debugging

Alastair Grant | Mon 25 Sep 2006

I have a problem recently that has caused me great annoyance. I'm currently developing BizTalk 2006 solutions in Visual Studio 2005. When I want to test some custom code, I use the "Attach to Process" option in the Debug menu, and have the IDE debug the managed code.

This is great, as I can see what is going through a real system and see what variables get populated etc.

Alas, it all went wrong the other day, and when I selected the BizTalk process to attach to, and clicked Attach, Visual Studio crashed. Not very handy.

It coughed up two errors in the event log, Visual Studio:

"Faulting application devenv.exe, version 8.0.50727.42, stamp 4333e699, faulting module vdt80p.dll, version 8.0.50727.42, stamp 4333eba8, debug? 0, fault address 0x00059db8"

And, .NET Runtime:

".NET Runtime version 2.0.50727.42 - Fatal Execution Engine Error (7A2B45A2) (0)"

Both of which aren't much use. I had a search around Usenet and on the Web, but not much fruit. I tried repairing VS and .NET, but no joy.

I have just tried clearing out some temporary directories, which appears to have done the trick. I cleared out:

  • %USERPROFILE%\Local Settings\Microsoft\Website\Cache
  • %USERPROFILE%\Local Settings\Microsoft\VisualStudio\8.0\ProjectAssemblies

And another directory which was named with the name of my company. This contained a load of directories with the name of my projects. I guess that the company name came from the project properties.

Anyway, this and a reboot seemed to have solved the problem, whether it is coincidence or not, I don't know.

Breaking from the voyeuristic norms of the Internet, any comments can be made in private by contacting me.