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XBAP causing IE crash?

Posted By:      Posted Date: August 27, 2010    Points: 0   Category :WPF
Our application is a C# XBAP.  Near as I can tell, the problem we are running into seems to be within IE rather than our code, so I tried looking for an appropriate IE forum, but the best I could find was "Internet Explorer Extension Development" and I got no response there, so trying here instead. Our application consists of a main IE instance (which contains the XBAP).  From the C# code in this XBAP, we obtain a reference to the IHtmlWindow2 object.  From that, we periodically call .open(...) to launch various other dialogs of interest to the user.  These dialogs typically contain a fair amount of Javascript as well. Our users began reporting random crashes, some with IE7, some with IE8.  I have been able to recreate a similar crash on my development system (Windows 7, IE8, Visual Studio 2010). Upon crashing, no information is sent to Event Viewer, and nothing is caught by our C# Exception handling either - IE simply exits.  I had to attach a native debugger (rather than managed) to get anything on this.  The debugger gave me the following error: Unhandled exception at 0x61755473 (mshtml.dll) in iexplore.exe: 0xC0000005: Access violation reading location 0xfeeefeee.   The error is apparently occuring in a native thread with the following callstack:      mshtml.dll!CRunPtrBase::SetRun()  + 0x3a b

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