4560: Is It Safe?

I managed to get this to work, with the following additional information I got from VersionTracker forum via MacFixit:

For Step 1, press F8 during XP startup (press it repeatedly, not holding, but over and over, until a text-based menu appears. Choose Safe with Networking (use the arrow key to choose, and the return key to select). To uninstall, locate Parallels Tools folder in C:\Program Files\Parallels. Delete the Parallels Tools folder. And then proceeed with Step 2 above.