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27th May 2009, 12:44
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I have a COM AddIn written in C#, built on .Net2008+sp1, for Office 2003. It has worked with Excel 2003 and 2007. I am building on a machine with office 2003, and only the Office 2003 PIA's.
On one machine, the add-in will not load in Excel 2007. When we go to the configuration tab, the COM add-in is listed as unloaded. We check the checkbox, restart Excel, and it still won't load. The loadBehavior registry key never changes from 3 (correct value). We have tried fusion logging, but Excel never tries to load the add-in, so we get no fusion logs. This does not occur on any other machine (loads on all other machines with either Excel2003 or Excel 2007 installed). Tried the trust center, no issues there. Excel does not throw any errors at startup. its like Excel just refuses to try to load this add-In Any help greatly appreciated. |
