Hi Rick
While I don't know the answer to your specific question, I can tell you that I would NEVER uninstall Adagio from the Add-Remove programs list under Control Panel. Unlike most programs that workstations run, Adagio program files are installed on the server, so uninstalling it from one workstation would uninstall it from ALL workstations.
So, in my opinion, it's not a problem that Adagio doesn't appear in the programs list; in fact it's a plus.
Steve