!Belarc Advisor
Belarc Advisor is a handy diagnostic tool which tells you everything you need to know about your own computer.  It delves into your OS and retrieves information what what updates and software has been installed, as well as many CD-Keys. 
Other relevant OS information can also be obtained here, it can be very useful for updating the IRM.
!Security Score
Don't worry about the security score, since the Students are to computers in the labs what Bill Murray is to Groundhogs Day, the chance that any security loophole will cause permanent damage is minute.