I need to make a project to send commands to a PIC controller (I don't know which one yet) using USB and using C.
What Am I need to start working on this project ?
Is there a specific version of C ?
On the controller side, is there an application I can use or Am I need to program the USB portion ?
Any specific headers or drivers for C ?
I think that you should be very specific on what you need. If you don't know exactly what you want I'm afraid you'd waste too many time surfing from forums to forums.
You got already a link Microchip Forum and I can give you more links to other forums but it would give nothing if you don't know what you want.