Freeze Outlook GUI until Done With Task?!?

[NipsMG]

I've written a COM Add-In for Outlook that, every 60 days, automatically backs up mail 60 days or older to an archive PST file.

I've got it all working fine, however, this is done at startup. What I'd like to do, is display a titlebar-less form (splash screen?!?) that notifies the user of the progress, but I want it to be MODAL to Outlook, so the user can't mess around with outlook until the mail backup has been completed.

Any ideas out there on how to do this? (frmWait.Show vbModal does not work) :-(

Thanks in advance.

--NipsMG