Hey everyone just need some help here really easy for 3dsmax script programmers :)

I've just started making a script that looks for a 3d file imports it sets up a camera renders then saves to bitmap.
but i can't work out how to

-Make it look in my C drive for 3D max files

-And how to make it save

any help would be greatly appreciated,
thanks

:)

DJ DUCK

'94