Need to find document, configure EMC with multiple lpt ports

Hello All,

Sometime back I came accross a file on setting up or configureing EMC
to use more than one parallel port with steppers. It seemed to be
very detailed in its explanation. I have since lost track of it and
I can't seem to locate it again to print out a new copy. I thought I
rememembered stumbling accross it on a NIST EMC link but I can't seem
to find my way back to it. Can any one on this list point me in the
right direction?

Thanks,

Donald Brock