Re:PICKit windows 7 64 bit driver issue
I also have an issue with PICKit3 on a 64-bit Windows 7 system. MPLAB 8.76 does not find either of my two PICKit3 programmers. My PICKit2 works fine on that system. It is a Dell Inspirion i3 running 64-bit Windows 7 Home Premium. All three of my PICKits work fine on my darling wife's 32-bit XP system.
I am beginning to think it is not a driver issue, per se', because both PICKit2 and 3 pull in the same standard HID driver - and the PICKit2 works just fine. I suspect that this particular Windows 7 64-bit environment is either exposing a bug in the MPLAB code that is specific to PICKit3, or is doing something legitimate but silly on the USB that confuses the PICKit3 firmware (but does not confuse the PICKit2 firmware).
My open ticket number is 214864.