We provide limited tech support for student machines in the residence halls...if it's something hardware we tell 'em no dice, but for other stuff we at least attempt to help, especially if it's network related. But we don't do house calls unless there's a busted jack or something like that. That's something we have trouble getting across sometimes. They ARE allowed to bring machines down here if it's something network related that they're having problems with...which also ends up meaning spyware and malware, since we deal with a lot of students with browser hijackers.
At least this year my boss finally said we don't work on a machine unless it's up to date on antivirus software. That's saving us major headaches, especially since we don't get many "repeat offenders". It DOES mean than most students with old machines that haven't done anything to maintain them get upset because there's not much we can do for them.
Good policy...
95% of the machines I deal with are department machines, which means they are always up to date and have a virus scan run daily. Very few spyware problems on a daily basis... which reminds me, I got Norton loaded back on but I've got to add Spybot and Ad-Aware tonight before I start surfing merrily.