Steam Games - X-Com Enforcer trouble

mrAru has been trying to play this for about a week on my desktop, and keeps getting the message that the game is not available at this time, but I have owned it ever since the multipack of all 5 of the X-Com games was mentioned here about what, a year or more ago?

Anybody else ever have issues running a game they already own? Any ideas how to get my damned game loaded so they can’t apparently delete my damned access to it?

The first step for any Steam issue is to delete ClientRegistry.blob from the Steam directory. Try it.

OK, off I go!