Second user can't start zdesktop

[owenstokes]

I successfully installed zdesktop on my Vista machine. The Install Directory is: C:\Users\[user1]\AppData\Local\Zimbra\zdesktop The program works fine.

I then switched to another user account on the same computer. I couldn't find zdektop so I did a second installation for that user. zdesktop will not run for this second user. The Problem (I think) is that the second install also went into C:\Users\user1\AppData\Local\Zimbra\zdesktop so I think I have some kind of access/security problem.

Neither install asked me to pick or confirm an install location.

My real question is:
Assuming I start from scratch, how do I install ZDesktop onto Vista Home Premium so that each account has it's own working version of the app?