I was attempting an ftp save-as from Ultaedit and accidentaly saved my file as /empeg/bin/d.

Is this file essential for the operation of the player - do I need to replace it with the correct file before I reboot?

It's not essential at all. It's a script we use to squirt new player binaries on during development. The only reason it's there in releases at all is to save us the minor hassle of zmodeming it back on again every time we put releases on our development units.

Peter