Hi totalnovice,
Basically, the idea here is to run only one decrypting application at any one time in order to avoid conflicts. Platinum 2.XXX used to co-exist with
AnyDVD quite nicely and some of us would run both with great results, even though this was not recommended. This is no longer the case.
It should be sufficient just to exit the application completely rather than having to uninstall (this is not the same thing as simply disabling it in the taskbar/quick lauch). On your system it probably loads with every reboot/power on (runs in the background). The fox will appeared grey (not enabled) or red (enabled). It must be exited...right click and choose exit. I'm not sure with Pinnacle, you may want to disable at startup in msconfig.
I see signals has posted and is questioning missing posts...sorry if this adds confusion...he may well know something I don't. If necessary, once you've uninstalled and run a reg cleaner, you should be able to have AnyDVD and platinum installed on your system. Many of us have multiple decrypters installed without issues, eg., platinum and AnyDVD.
Hope this helps.