Hi Richard,
I have to agree with Carsten with respect to official support. But, I can also add that I have been running a CVI 6 (now CVI 7) application on Windows S2K3 for almost 2 years now without a hitch. This is a dual Xeon box that monitors a production process and puts data into a database. The database can grow up to 350 MB per week and the server can handle over 1 GB of FieldPoint ethernet traffic in that same time period--all without any problems. Who knows? Your app might be very different from mine.
Remember S2K3 is Windows 5.2, while XP is 5.1. Many of the 32-bit API calls are the same or expanded even though underneath there are some changes that make them differ. I can't tell you anything about the 64-bit environment for S2K3. When I asked last year about this the only response I got from NI about a future 64-bit environment was advise to consider the .NET studio add-on and try it there. There aren't all that many 64-bit apps yet so I personally doubt CVI 8 will natively include its own 64-bit compiler and distribution kit. Maybe we'll have to wait for CVI 9?
Orlan
