A version of the venerable teXsan package has recently been by MSC for Windows95 and Windows NT. Promotional meterial I received recently lists the price of the first copy at $2500, the second copy at $1000, and all subsequent copies at $500 each. Thus five copies of teXsan for Windows would cost a total of $5000 (a copy is a per computer license with licensing controlled by a Dongle plug).
The SHELXTL Version 5 package from Bruker is, as far as I know, the longest standing PC implementation of a crystallography software package from any of the diffractometer vendors. I have not worked with the latest version, but my previous experience with an earlier version (4.1) of SHELXTL was quite rewarding and I was impressed by its capabilities and ease of use. The last I heard, a single copy of SHELXL can be purchased for $5000, but that was a few years ago. I will try to get an update.
Last changed December 10, 1996