Well, I haven't seen it but I would try looking at the 'Uninstall' registry entries. It should have an 'Uninstall String' that you can pipe out to a Shell command, maybe with a /s or /q switch to uninstall it quietly.

If that doesn't work for you, you can use InstallWatch Pro 2.5 to 'watch' an installation. Then, once you have the installation info captured you can script an uninstall procedure.