I have 2 computers:

1. Win7, Office2007, VS 2010
2. Win XP, Office2007, VS 2010

I've created COM Add-in for office applications.
If I build it on the second computer, Office applications successfully load it on both computers.
But, if I build it on the first computer, Office applications don't load it on any computer.

Do you have any ideas for troubleshooting?

Thank you.