COM Add-in for Excel doesn't load when Excel is launched by opening file

Posted by Nick Hebb on Stack Overflow See other posts from Stack Overflow or by Nick Hebb
Published on 2009-10-15T00:36:25Z Indexed on 2010/03/28 17:53 UTC
Read the original article Hit count: 658

Filed under:

excel

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add-in

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vb6

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com

Several users have reported that if they launch Excel by double-clicking an Excel file, the add-in will not load. But, if they open Excel via the Start menu (or Quick launch toolbar) the add-in loads fine.

Some details, in case they help:

It is a COM add-in, written in VB6.
The problem has been reported on Windows XP/Excel 2003 and Vista/Excel 2007 systems.
The add-in implements IDTExtensibility2.
The start mode is set to "Load on Startup".

Any thoughts on the cause or how to troubleshoot this would be greatly appreciated.

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