PRB: MFC ActiveX Document Servers Require Compound File Support (166769)
The information in this article applies to:
- The Microsoft Foundation Classes (MFC), when used with:
- Microsoft Visual C++, 32-bit Enterprise Edition 4.2
- Microsoft Visual C++, 32-bit Professional Edition 4.2
- Microsoft Visual C++, 32-bit Enterprise Edition 4.2b
- Microsoft Visual C++, 32-bit Professional Edition 4.2b
- Microsoft Visual C++, 32-bit Enterprise Edition 5.0
- Microsoft Visual C++, 32-bit Professional Edition 5.0
- Microsoft Visual C++, 32-bit Enterprise Edition 6.0
- Microsoft Visual C++, 32-bit Professional Edition 6.0
- Microsoft Visual C++, 32-bit Learning Edition 6.0
This article was previously published under Q166769 SYMPTOMS
When you save an ActiveX Document that does not use compound files from
Internet Explorer functioning as an ActiveX Document Container, the file
will be saved in compound document format. Subsequent attempts to load the
file in Internet Explorer results in the exception "Unexpected File
Format."
Microsoft Binder will not load the document.
CAUSE
The MFC ActiveX Document Server classes normally require compound file
support.
RESOLUTION
Add a call to EnableCompoundFile(TRUE) in the document constructor:
CScribDoc::CScribDoc()
{
// ...
EnableCompoundFile(TRUE);
}
MORE INFORMATION
Creating a new ActiveX Document server or regular OLE embedding server in
AppWizard selects compound file support by default. The assertion problem
occurs if compound file support was deselected when the project was
initially created.
| Modification Type: | Major | Last Reviewed: | 12/10/2003 |
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| Keywords: | kbActiveDocs kbAutomation kbLocalSvr kbprb KB166769 |
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