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Working with COM control - "COM object that has been separated from its underlying RCW can not be used"

Posted on 2004-10-12
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Last Modified: 2012-05-07
I have a COM control I converted into a user control hosted on a WindowsForm.  It was working great until I began an asynchronous version of the Form hosting the COM control.  The exception is "working with COM control - "COM object that has been separated from its underlying RCW can not be used"

Any ideas?
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Question by:natejacobs
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tomvergote earned 500 total points
ID: 12296228
Did you apply all .NET service packs?

I remember having this issue a while back and there was a patch available. It seems to be included in the latest rollup patch too by now.

http://support.microsoft.com/?kbid=818612
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by:natejacobs
ID: 12298797
Tom -

thanks for the link.  I'm moving on to a different approach rather than jumping into this any deeper.

Nate
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Expert Comment

by:tomvergote
ID: 12308723
Did applying a service pack help?

Anyway, thanks for the bag of points for a shoddy non-solution ;)
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