For your HP Z560 you WILL
For your HP Z560 you WILL need a PID. It’s required whenever you run a cableCARD device with Win7. It is part of the licensing deal with MS and CableLabs. With Win7 the PID generated by the DCA is generic so if you run the DCA on another machine you can copy it over to this machine. BUT the other thing the DCA does is remove the Special BIOS requirement.
SD has published a generic key in their form on the HD Prime so you can copy it from there. I though you were running the other machine in which the generic key might not work since it would have had a unique manufacturer’s lot key.
If you’ve run the by-pass and you still can’t set-up the tuners then there something else wrong with the Win7 installation. If the problem is just you can’t find the tuners then you can run the OCUR discovery job to detect the tuners for Media Center.