QUOTE(Xenio)
hm is windows 2003 server also an XP based system?
Not quite. They're both NT 5.x (XP 5.1, Server 2003 5.2) but they have some differences. BTW, I once used a "server2workstation" converter in Windows Server 2003 and the thing was completely converted to Windows XP Pro (boot logo, about box, even the Welcome to Windows XP tour...). And it only made changes to the registry...
QUOTE(Xenio)
will it work in win2k3 machines ?
Yes. Check this:
http://www.msfn.org/win2k3/ . A lot of experts say one shouldn't be using Windows Server 2003 as a workstation, though. They are probably right. But I did it and never had any problems.
cya