title: vba excel: Add-in in XLSTART ignored
body: <p>We have a vba excel Add-In installed in the users XLSTART folder. This works fine.</p>
  
  <p>Now we did a small code change in a function and tested it on the developer machine. This works fine as well.</p>
  
  <p>After deploying the Add-In, it's completely ignored by Excel. It's not loaded on start-up, no error message, nothing. If we copy again the old versin to the XLSTART folder, it works as expected. We did the same code change to a Word macro which is installed in the STARTUP folder. This one works fine.</p>
  
  <p>Any ideas why the changed Excel Add-In gets ignored?</p>