I have created an .msi application object to push out the ZfdAgent
version 7 to the workstations on the network. Most machines I've tested
on come back with an msi 1603 error and the upgrade fails.

After setting up the Show Progress to show Full, I got the following
error:

ZENworks Desktop Management Agent - InstallShield Wizard

Files in use
Some Files that need to be updated are currently in use.

The following applications are using files that need to be updated by
this setup.

ZENworks Desktop Management Agent - InstallShield Wizard

It sounds like the upgrade is trying to upgrade itself.

In the msi tab in the object, the properties are:
ADDLOCAL
WorkstationManager,ApplicationLauncher,Inventory,I maging

If I take out the ApplicationLauncher, the process seems to run fine.

Any suggestions are welcome.

Regards,
Durk