Background: The recent Microsoft Update KB5006670 has left one of my customers Windows 10 workstation without working print queues to a proprietary print controller (CREO IC-304). Enabling SMB1 and uninstalling the HotFix allows us to re-install the queues via Point and Print. But this is obviously a temporary fix until MS enforces their patch which they should and will to cope with PrintNightmare.
My customer must use Windows 10 to support publishing software requirements but needs those applications to print natively to network print queues that - very soon - will only be sustainable on Windows 7.
Problem: Windows 7 can't seem to share the network printer queues.
They are configured shared:
Network discovery and File and Printer sharing are both enabled:
But the printers still cannot be seen on the network:
Further investigation shows other (more modern) network printers CAN be shared so this must be a deficiency in the IC-304 print driver and/or print processor that prevents Windows 7 from sharing them.
No solution: the printer drivers involved are simply too archaic to be in service any more.