Hi again
I figured out that to get rid of the error message, I could run the msi
installer with the /qb switch. This makes the installers interface "basic"
(just one small dialog box), as opposed to "advertised" (with multiple
screens and graphics) which apparently has something to do with security
imposed by group policy settings. I'd really like to have users see my
install screens if possible. Can I?

In any case, the add-in still won't run. It actually does show up in the
list in Outlook at Tools - Options - Other - Advanced Options - COM
Add-Ins, but the box next to it isn't checked. If you do put a check in it
and click OK, as soon as you re-open the list, the check is gone.

Does this have something to do with me not specifying correctly that the
Add-In should automatically run at startup?

Thanks again
-Josh