Understood

Unfortunately, I don't have a home computer at the moment, so I'm stuck configuring my hardware at school. The thing about doing that though is that the only software that I'm able to use are the ones that require no installation. In other words, I can only use the software that lets you configure the mouse sensitivity and such. Is there any other way that I can configure the fire button on the side? I really want to be able to use it because it has a better feel to it when firing it (I know this because my friend also has a KeyMander gaming kit and he let me use it.

P.S.
What is the side button mapped as? (i.e. M1, M2, M3...?)

It's the RETIKAL mouse. . .