farsi language on windows xp

If it asks for the disk, you can try using the SP3 files (download SP3 and expand the files using the "-x:c:\sp3" switch that will copy the contents of the SP3 files to the C:\SP3 directory). You can then try to point the setup for the language pack to that directory, you may need to do some navigation or searches to find the right files in that directory.

Or see if anyone you know has an XP disk.