Why does MS Script Debugger keep appearing?

Over the past few days, Microsoft Script Debugger will randomly appear.  Nothing is loaded in it.  It's just a blank window.  I've looked in my event viewer and don't see any error entries for applications.  I'm using Vista Premium 64 bit.  Is there a way to stop the debugger from appearing?
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JohnBusiness Consultant (Owner)Commented:
IE -> Tools -> Internet Options -> Advanced : Disable script debugging (two places). ... Thinkpads_User
brettr--And UNcheck the box (same Advanced window) for "Display a notification about every script error."
Some information in this article might be repeating what the other experts have already said, but there are some additional methods as well, which might help:


This applies to IE7 and IE8.
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brettrAuthor Commented:
I've followed the first two suggestions from above.  Unfortunately, the window keeps appearing.  I don't even have IE open when it appears.  Could this be coming from something other than IE?
Could be anything using the Windows Scripting Host......

Try registering two DLL files....


regsvr32 jscript.dll
regsvr32 vbscript.dll
When the debugger window appears again, can you send us a HijackThis log then? This will allow us to see what are the programs loaded in the background which could trigger debugger into action. Or you can send it now.

It can be downloaded from:


brettrAuthor Commented:
Log is attached.  Thanks.
Thanks for sending the log. Here are my observations:

1. Windows Vista is still on SP1, it can be upgraded to SP2 (which is the latest service pack).

2. Same thing for IE7, it can be upgraded to IE8.

3. You have a lot of ICW\bin\bash.exe processes running in the background. My from research, it seems that you have Cygwin installed, which is what is running lots of instances.

4. Daemon Tools seems to have some kind of problem with Windows Debugger. Is it possible for you to uninstall this program for a day or two to see if you get the prompt again?


Try the above suggestions and see how it goes.
If the above suggestions don't resolve the problem, then we can try this:

Start->Run->services.msc . Do you see 'Machine Debug Manager' in there? Is it set to 'Automatic' for startup? Change it to 'Manual' and then reboot your PC.

But for now try the above suggestions first.
brettrAuthor Commented:
I ran the updates.  There doesn't seem to be an SP2 for 64bit Vista.  I didn't install IE8 64bit since I use roboform, which doesn't work with the 64bit version of Vista.  That was earlier this morning.   So far, no debugger window.  I'll give it a try for a couple of days.
JohnBusiness Consultant (Owner)Commented:
Check again at Downloads at Microsoft. I had Vista running until 12-31-2009 and it was at SP2 64-bit, so it is out there. ... Thinkpads_User

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