holla,
for lanschool, i have found a little solution.
when you are longin in your account, just go
to administrator utility in control panel and use Service.
deactivate LanSchoolStudent and some shit like LanSchool Server Power.
you can't stop it. but you can make iit desactivate or manual so
reboot and there is no lanschool, but take the time at the end of the period
to remake it boot automatic. so now you can make
anything when the teacher have control of the other computer ;)
cia