I replaced my old main desktop PC with a new desktop with windows vista home premium, this unit has printer connected to it. I have three PC's on my net work my office PC, kids PC, and my laptop. Now the office PC is the new one with windows vista. The laptop has widows vista also. the kids PC has XP. the network is set up and I can see all three pc's just fine and all computers. trnasfer files between them with no issues. Working on setting up the network printer works fine on my two vista systems. On my XP unit i can't even see the printer tried adding network printer it see's my systems but no options for printers. I installed that LLTD Hotfix with no luck. Also, my network isa wifi network. Thanks Leon