We have a Dual P-III 1GHz Citrix MetaFrame XP / Window 2000 server with 4 GigaBytes of memory to run most of MS-Windows applications on non-MS-Windows machines such as Linux, SGI, and Mac. Each user needs a Windows account to use it. Most of user can use the Citrix MF XP X-Servers sepia, mango and pear to run a Citrix client. See section 5.14.