The process to perform an Admin install from an MSI is a complicated process in that you need to run the "MSIEXEC /A" from your workstations' local hard drive or CD-ROM drive and perform the install up to an actual mapped drive or the \\servername\share\ folder. Not sure why, but Microsoft actually has the logic in the MSI engine to make it work this way. If you copy the install files up to the server, then run the "MSIEXEC /A" command and point to another folder on the same server it will still fail. The admin install MUST go from workstation to server. Fun, huh?