We use the stk500.exe in a command line script with an AVRISP for production programming. I recently upgraded my version of AVRStudio from v4.08 to v4.11. AVRStudio then prompted me to upgrade the firmware on my AVRISP, which I did. Now I'm finding that the newly upgraded AVRISP won't work with the older version of stk500.exe. I've tried un-installing v4.11 and re-installing v4.08 with the plan of down-grading the AVRISP firmware, but now the application just hangs when I try to access the AVRISP.
Anyone know how to fix this?