I initially was using wget & decided to see how else I could do what I wanted, not sure which I'll use yet to be honest, I'm still testing Wget Post: http://www.msfn.org/board/index.php?showtopic=24317&hl=wget Personally I prefer the HTTP solution because an IIS running the SUS Server is normally present already and you don't need any authentication by default. So it is not necessary to setup and/or configure any additional service, just copy the file structure to your SUS Server and you're done. In terms of optimal usage of bandwidth I don't know which protocol is actually more efficient, http 1.1 or ftp.