When I use the Agent Distributor Tool to deploy the ZEN Desktop
Management Agent to a workstation member of the domain, I get a result
of "Workstation <name> Failed - Windows error 1603 (Fatal error during
installation)". The distributor in this case is deploying to a
workstation with a logged-in user who has NO administrative rights.

If I deploy using the Distributor utility with an Administrator logged in
to the target workstation, it succeeds.

What am I missing? Does the user on the target machine have to have
Administrative rights?