We have lift off .....
On the chance there was something wrong with the first PCI parallel port card, another was installed, this an INTEK model 9805 with a Net MOS chip.
In Start>Control Panel>System>Device Manager>Ports>PCI Parallel Port (LPT3)>Properties>Resources the address is listed as DDC8-DDCF.
So using your suggestion DDC8 was entered into MACH3 Port #1.
It worked; voltage changes from 4.98 VDC to 0 VDC on pins 3,5,7 and 9 when direction arrows are press on X, Y, and Z.
Do not know if first card was bad, but with one working can now calibrate Droid and make some $$$$$$$$$$$$.
I will set some of the $$$$$$$$$$ so I can buy you a beer when I get to Plymouth, and then head up North, later this summer.
Thank you once more,