Excel 2003 Addin Developed by VSTO 2008 C# does not load in Excel 2003 but in Excel 2007 RRS feed

  • Question

  • I have developped a C# Addin for Excel 2003 using VSTO 2008. I have created the installation files both by publish and windows installer. It works in my developing machine, which is XP. When I install it to annother machine (Windows 7) with Excel 2003, the addin did not load up. When I check COM Add-Ins window, it was not there. The rigister key is in HKEY_CURRENT USER -Software-Microsoft-Office-Excel-Addins. Then I installed office 2007 in this machine, the addin did come up with Excel 2007. The problem is my clients run Excel 2003 and my boss is mad at me. Please help.

    I am waiting.... Many many thanks.

    Thursday, May 19, 2011 4:46 PM


  • Thanks. I have fond the answer.


    I need grant full access to the addIn assembly by addint a SetSecurity project in the solution

    • Marked as answer by yuxuzi Tuesday, May 24, 2011 2:09 PM
    Tuesday, May 24, 2011 2:09 PM

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