GoForSmoke:
Dubz, with USB HID you don't need drivers since they are standard in most O/S's.You can make an ATTiny with only 8 pins look like a USB keyboard to many PC's for less than $5 in parts.
The 'control program' is called a Console Window, Command Terminal, Shell Interface. -Anything- that can type into one can do a lot to direct operations of the PC. And how hard is it to have a Console run at Startup?
Thanks! Will look it up
And thanks for all the response, very helpful!
Best regards!