Hmm, I haven't done much with VSTO 3.0 addins but I haven't seen that in my
limited experience with them. I certainly haven't seen that with VSTO 2.5 SE
addins at all.
Are you running any other addins in Outlook on that machine? Does this
problem occur on other machines with the same addin?
You might get a better response in the managed VSTO forum, a lot of the VSTO
team members answer questions there and they'd know if anyone would:
[MVP - Outlook]
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.