We've had some of the workstations have a problem loading the NAL.
Since the users are setup as PowerUsers running Windows XP SP1, I go to the workstation
and attempt to reinstall the ZenAgent but get the following error.

The complete error is :
Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup
did not finish as expected. Conatct your support personnel or package vendor.

We're also running Zen 6.5SP1.
Any suggestions?