I would suggest loading VisionFS from SCO/Caldera on the SCO server. If you have it on the server already then it may not be running. If you are not sure whether or not it is loaded check your software manager (custom) on the SCO system, it will show you if it is loaded.
If it is loaded; the files will reside in the usr/lib/vision/visionfs directory of the SCO box. The command to start it is (from root directory) "./usr/lib/vision/visionfs/bin/visionfs start" There are 2 spaces between the last visionfs and the word start. You can add this to the "etc/rc2.d/8" userdef file to have it start each time the system boots.
Visionfs is a SMB server which allows you to share resources between the Microsoft based network and the SCO system. This includes user shares, printers etc.. It is a good and worthwhile program to those that need it.
Another really excellent SMB server program is SAMBA from samba.org. It will give you the same functionality as Visionfs. I prefer Visioinfs for SCO systems because it is tailored for these systems. Which ever one you might choose, read the documentation before installing them.
Thanks;
Mike