Windows Process Activation Service won't Start "parameter is incorrect" (Visual Studio 2010 Profiler)

Posted by user23596 on Server Fault See other posts from Server Fault or by user23596
Published on 2010-12-09T16:18:51Z Indexed on 2012/11/28 11:06 UTC
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I've struggled with this one for a whole day, so here is both the problem & solution:

After profiling an ASP.NET application on Windows 7 (x64), I exited Visual Studio (possibly a crash) and installed some updates which required a reboot. When I loaded back up the ASP.NET Web Application in my Visual Studio Solution was dimmed out, and the Web & WAS services turned out to be stopped.

When I tried starting Windows Process Activation Service, I got the error "parameter is incorrect".

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