Hi,
Windows 10 (64 bit) does not support Mach's parallel port driver. Nor will any conventional USB-to-parallel converter work.
If you wish to continue to use a parallel port then the PC will have to be Windows 7 or earlier, like XP, and 32 bit.
If you want to use Windows 10 then you will need an external motion controller like a SmoothStepper or a UC300.
A UC100 is another popular choice. It plugs in to your PC USB port and has a DB25 parallel port plug on the other end.
You might say its a USB to parallel adapter, its not. It has an FPGA IC inside it and it generates the pulse streams, a job
that used to be done by Machs parallel port driver right inside the PC's CPU. That makes it way too clever to be called an adapter.
Genuine UC100's cost $120US Don't get ripped by the Chinese look-a-likes on EBay or Amazon. Go Direct to CNCDrive or
their nominated distributor. If you try to buy cheap you will get ripped every time.
Craig