PRB: InterruptScriptThread Causes Invalid Page Fault in OLEAUT32 (182946)

The information in this article applies to:

Microsoft Visual C++, 32-bit Enterprise Edition 5.0
Microsoft Visual C++, 32-bit Professional Edition 5.0

This article was previously published under Q182946

SYMPTOMS

When you try to interrupt a running script thread with IActiveScript::InterruptScriptThread(), you receive one of the following errors:

<Program> caused an invalid page fault in module OLEAUT32.DLL at 0137:65347989

-or-

Access violation in OLEAUT32.DLL

CAUSE

The documentation for the IActiveScript::InterruptScriptThread() method indicates that you should pass the address of an EXCEPINFO structure as the second parameter. However, it fails to mention that this structure must be initialized because InterruptScriptThread will try to use information stored in the EXCEPINFO structure.

RESOLUTION

To correct this problem, do one of the following two things:

Pass NULL for the second argument, pexcepinfo, of InterruptScriptThread(). Here's an example:
```
pActiveScript->InterruptScriptThread(SCRIPTTHREADID_BASE, NULL, 0);
						
```

Initialize the EXCEPINFO structure before passing it to InterruptScriptThread(). Here's an example:

EXCEPINFO ex;
memset( &ex, 0, sizeof( EXCEPINFO ));

pActiveScript->InterruptScriptThread( SCRIPTTHREADID_BASE, &ex, 0 );

REFERENCES

Microsoft ActiveX 3.01 SDK; search on "ActiveX Scripting"

Modification Type:	Minor	Last Reviewed:	3/21/2005
Keywords:	kbcode kbdocerr kberrmsg kbprb KB182946