I tested others 2 or 3 software similar to USB over Network and no other worked with my HP Scanner. I found information about FabulaTech software, and others, when I was searching on Google about sharing scanner to many computers. Initially I expected to find some hardware device, but the software solution seemed more comfortable to use.
My situation is: I have a desktop as home server, a desktop as workstation and my wife's notebook. The desktop server are connected to scanner and its is all time on (24/7) because it has Video Security Software (IPCam), DLNA and windows printer sharing services.
The FabulaTech software was the most stable, compatible and fast I tested.Sergio Tito Freitas