This is a brand new version of Megastar 5 from Willmann-Bell Publications. "Megastar has been built upon a unique database that links information from a wide variety of sources ... and today continues to be one of the most complete, fully integrated night sky computer databases available. ...Telescope interfaces are available for a wide variety of scopes and as new telescopes are introduced updates will be available".
Willmann-Bell says compatability withWin95, 98, ME, NT4.0, 2000, and XP.
I use a Mac so I cannot really use this software. $90.00 and I will ship USPS. If you want other shipping you will need to pay the shipping. I prefer postal money order, alhtough I will accept personal check, but it will take longer to ship.