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- http://support.microsoft.com/kb/836080/en-us
- Dr. Watson isn't enabled: run "drwatsn32.exe -i" to install/enable it as the default debugger.
- Something's wrong with the registry key controlling debugging (see http://support.microsoft.com/kb/188296)
IIS crashes
Unfortunately, I don't think IIS tends to produce Watson events when it crashes, particularly if the crash is isolated in an AppPool process, which is usually the case on IIS6. I found a blog article with some links to tools that may be relevant to getting information about such crashes, but more research is needed.
Debug Build
In most cases, a stack trace without symbols is only partially helpful. To actually debug the problem, you may need to produce a stack trace with the debug version of the software, which is included with the installation package.
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