I'm not sure,but I found this,There are currently no supported or un-supported means to implement
Microsoft ClearType on Microsoft Windows 2000
I have a few different computers and also work on them for my friends - not everyone has a computer with Windows XP - many still have Windows 2000 Pro which is an excellent operating system and still supported by Microsoft. Most people do want the newer LDC monitors which will work much better with "clear type". From everything I have read - clear type is simply not available on Windows 2000 Pro. Can anyone tell me a tweak or some method to install clear type on Windows 2000 Pro??? I have tried the Microsoft Toys and that does not work - also some other things that "might" work - they did not. Does anyone know of something that will work on Windows 2000 Pro ???