Nono, I can run regedit at school fine... The main security feature is deepfreeze over here... I know how to get myself admin... but that's not my purpose, I just wanna make msn work or any type of messaging threw the network... it doesnt need to get a respond. I just want to be able to send a message to a specifyed machine or to all machines in the class... is it possible, if so, how?

You said net send doesn't work because msn is locked, and that this has to do with a registry key, might you tell me what key is that?