No luck with uninstalling using a GPO and MSI. This is what I tried....

Created a test workstation within the OU I am testing GPOs with. Install Netop 7.5 from a non msi setup. (This probably the case for a lot of workstations on our real network)

Added the Netop 9 MSI Package to the policy, and set to assigned.
Added the new Crosstec MSI Package to the polciy, and set it to replace/upgrade Netop 9 Msi.

Crosstec installs, but nothing happens with the Netop Stuff. Is there anyway I could use a script that would just check for any versions of netop, and then uninstall them silently?