Hello, Everything works great on my family lan. But, if i enter in a DOS cmd window "net send theMessage" it returns me a message (translated from french): the sending of file is no longer authorized. I never succeeded to make this net send command work. Thanks a lot for any advice and/or "how to" check my network is right configured though it works great apart of this net problem. (PCs are declared under the same workgroup but if I open the workgroup, on 1 Pc it only shows itself's name, and on the other same-workgroup-PC if just shows nothing). GigaByte 3D Aurora Asus P5WDHDeluxe RAID 0 Intel Core 2 Duo E6700 2GB DDR2 Twin2X 800MHz nVidia GeForce 7900 GTX

From what I see, you haven't set a destination so the message doesn't know where to go. I would google the 'net send' command for more info on how to properly use it.

net send have another synatxis http://www.cezeo.com/tips-and-trick...

Thanks a lot crea7or, re-starting the "Messenger" service did the trick, as suggested in your link. GigaByte 3D Aurora Asus P5WDHDeluxe RAID 0 Intel Core 2 Duo E6700 2GB DDR2 Twin2X 800MHz nVidia GeForce 7900 GTX