"Well, the mystery of the Curtains for Windows System Launcher has been
solved. The actual name of the program is CurtainsSysSvcNT.exe. A few days
ago I downloaded and installed a security manager offered by Comcast and the
mystery program is part of that package. I just got off the phone with Tech.
Support at Comcast. The program needs Internet access for updates. So it's
legitimate. Thanks for the suggestion about using hijackThis. I did download
it and run it but it didn't show up anything out of the ordinary, but I"m
glad to have it as it may prove useful in the future."
Since I see "comcast" in your address, I suggest you ask Comcast about this.