Windows PC as CNC controller

Hi,

I would like to develop new CNC controller based on the PC. Using
Windows seems ok, Being more familiar with Windows than Linux. I figure
these new PCs run so fast that they must be able to stay ahead of a
mechanical cutting device.

Does anyone out there know how to build a kernal program that will stay
in memory, be started at the 1200000 interrupt rate, and communicate
directly with the printer port, and with my controller via a queue of
data?

I am driving the parallel port through a XYLOTEX into an tabletop mill
(as of yesterday), but there is no kind of timing being attempted.