Consider the following scenario. You have a Microsoft Visual Studio Tools for the Microsoft Office System version 2003 solution that contains a WinForm control. You programmatically close a Microsoft Office Word 2003 document or a Microsoft Office Excel 2003 spreadsheet from the WinForm control. In this scenario, Microsoft Office 2003 crashes. This behavior occurs after you apply the Update for Office 2003 (KB907417).
Note This problem also occurs if you are running the original release version of the Microsoft .NET Framework 1.1 and you have not applied the Update for Office 2003 (KB907417).
This problem occurs because of a limitation in the .NET Framework exception handling for application domains that are unloaded in a managed Office 2003 solution.
Note This problem only affects Visual Studio Tools for the Office System version 2003 solutions. Non-Visual Studio 2003 Tools for the Office System managed solutions are not affected by this problem because application domains are not unloaded when the document or the spreadsheet is closed.
To resolve this problem, we recommend that you do not use code that closes an Office document or spreadsheet from a WinForm control in a Visual Studio Tools for the Office System version 2003 solution.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about Visual Studio Tools for the Office System version 2003, visit the following Microsoft Developer Network (MSDN) Web site: