The issue is with the automatic issue of drive letters. I found another piece of software that worked similarly to PAs and also used StarPort drivers. I have updated these drivers via windows device manager without any difference. Anybody have any ideas where the upper and lower filter keys for the PA virtual drive are in the registry or even what the drive is called (Rocket, StarPort, PowerArchiver, SPTD)? Restore points will not help, old ones gone as many installs and uninstalls have written new ones.