How to trick AVR Studio /Pocket AVR to work with ATtiny84?

I use the Pocket AVR to program the ATtiny85 from Arduino. That’s not exactly what you are doing but Arduino just calls avrdude to do the programming and I think the '84 programs the same as the '85.

Minus the full path expansion, the command that Arduino executes is

avrdude -CC:.…/avrdude.conf -v -v -v -v -pattiny85 -cusbtiny -Uflash:w:C:.…\myfile.cpp.hex:i

I first set this up in Arduino following the instructions in the [Tiny AVR Programmer Hookup Guide, but I used the Pocket AVR programmer because it’s easier to connect to the ATtiny in a SOIC package on the board. For me it all just works.

You might try the hookup guide to see if that has a different driver or something.

Good luck,