Installed fonts are saved to HKEY_LOCAL_MACHINE registry key, so in the case
you need to provide different font sets to users logged on the same computer,
you have to find some way to install/uninstall fonts when some user loggs on.
YOu can use special software such as FontExpert font manager to organize
fonts into groups and install/uninstall groups of fonts as one unit. Another
solution is a usage of font server which will allow you to install selected
groups of fonts on client computers depending on the user group that a user
belong to.