Release Notes
Chapter 2, Read this after installation

SCO VisionFS and SCO Advanced File and Print Server

SCO VisionFS and SCO Advanced File and Print Server

SCO VisionFS is not compatible with LAN Manager or SCO Advanced File and Print Server, due to use of a different NetBIOS. If Advanced File and Print Server is already installed, stop the server and the NetBIOS before installing VisionFS. From a UNIX command line, enter:

net stop server
netbios stop
rm /etc/rc2.d/S86netbios (or move the file to another directory)