Phantom Drive in hoster.

[ddouglass]

This would make me think you have a virtual drive set-up on this computer such as Slysoft's Virtual CloneDrive or Farstone's VirtualDrive.
If so that virtual drive would need to be removed as Hoster will not work with it.
If not then remove and re-install Hoster and check the box at the bottom of the personal information page to remove the registry entries which should clear that out.