I'm programming a PIC16F77 with ProPic 2 which communicates via serial port. As I don't have this port in my PC, I used serial to USB adapter. I'm using ICProg in Windows 8.
I've proggrammed it before but it was in Windows XP using the driver who specifies in http://www.ic-prog.com/index1.htm and worked perfectly. But in this OS the only difference is the adapter, the program gives some errors while loading the driver:
"Error occured (Access is denied) while loading the driver!"
"Privileged instruction"
Best Answer
Windows 8 is not the greatest OS for use with serial ports. I've heard a lot of people having trouble like this, and the only real long-term solution is getting a better programmer, such as the Pickit 3 (highly recommend it since you can also debug with it). You might also get more support in microchip's forums: www.microchip.com/forums
Good luck!