[MTUSUPPORT]

Dave,
There is nothing that I am aware of that would cause Hoster to crash as you have stated.

The only thing that I know of that can do this, is that if you have your Selected Folder, on the Import Tracks Tab, set to a CD drive or if it is set to a External USB drive, that no longer is connected to the system. These are the only two things that I know will crash it, and this will only crash when you try to add a song to a Playlist, because the playlist is trying to be created and it can't.

There have been no changes or updates to Hoster 2.219, there doesn't seem to be any other clients having problems. You might try running all of the Windows Updates, including updating to SP2, and see what happens then.