The Problem§
A reader of mine contacted me today about an error he was seeing with DVD Decrypter on his Windows 7 box. The error spoke about 'Failed to set data for "DVDDecrypterPlayMovieDVDMovieOnArrival"'. Reading his email reminded me that I had seen the error myself before.
The error is actually two errors which occur when you try to close DVD Decrypter on a Windows 7 machine.