More problems. Referring to above post, I was going to install AC v3 on SBS2008 and then attempt to upgrade. I got stopped at step 1 - I could not install V3's MSI on SBS2008, because of error 1721 - there is a problem with this installer package, a program required could not be run. The MSI message did not give any clues as to what was missing.
Has anyone ever tried installing V3 on SBS2008?