In a relatively new installation of Windows Server 2008 R2, there are occasional popup messages about Just-in-time debugging. These may come up in w3wp.exe when a search bot accesses an aspx application. These messages are local Windows popups, not in browsers.

I cannot debug "just-in-time", however, because there are no and never have been any debuggers on the server. Microsoft is kind enough to tell my I don't have a VS2010 license to debug when I click debug. This makes the popup messages pretty useless, particularly since I typically don't see them until a few days after the fact.

How can I disable the Just-in-time debugging popup messages?

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  • 4
    I think I'd be more inclined to try and fix the cause instead of hiding the effects. A crashing w3wp.exe process will also be affecting legitimate users of the application. Is this your code or a 3rd party application? – Chris McKeown Dec 1 '13 at 23:22
  • I can fix the causes, which are usually logged. That is a separate issue. The question is how to prevent the popup windows when an error does occur. – xpda Dec 2 '13 at 0:41
  • 2
    I have this problem on my sharepoint server too. The crashes are inconsequential but the popups are irritating. – Grant Dec 5 '13 at 4:36
  • There is also a similar posting, over at Stack Overflow, maybe this helps someone, too. – Uwe Keim Nov 4 '16 at 18:30

Remove the following Registry keys from the HKEY_LOCAL_MACHINE hive:

  • SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug\Debugger
  • SOFTWARE\Microsoft.NETFramework\DbgManagedDebugger
  • SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\AeDebug\Debugger
  • SOFTWARE\Wow6432Node\Microsoft.NETFramework\DbgManagedDebugger
  • 1
    I deleted the two AeDebug keys (and rebooted the server). The server does not have the DbgManagedDebugger keys. This made no difference -- the windows still appear. – xpda Dec 2 '13 at 2:51

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