Ho Nplolansky, It sounds like your machines has a 'super disk or a Zip drive attached, ( E
The Milltronics has the RS-23 on the inside cable already pinned for the "extra grounds" and basically a 3 wire connection.
DOS is a difficult connection to Win 10. It ( win 10) wants to control the "security" so much and DOS does not. So, Win 10 cries and screams like a little girl in a bug factory. That being said, the share folder should NEVER have access to the Inter net. It has to be limited to that folder and the machine. " Or Else" the big bad web WILL BITE YOU. HARD !
The other option is to add ( depending on how big you cad cam file are) 1. add my floppy emulator with zip file, ( ~4.5 MB file) zip it up and copy to the USB ( floppy, formatted drive ( 0-99 floppy sectors available) 2. add Multi function drive, that uses a IDE drive that uses higher density ( 2 GB) drive media, ( compact flash, SD card, memory stick etc) and copy to disk and load as usual. ( the IT people will be thankful)
3. update the control to my "Super SBC control update: this has a "hot swappable USB ( thumb drive) That works in DOS. (not a small feat) (ask around)
contact me for more info on ANY of the options. or to Dis "cuss" how I can help.
sportybob