How to install Apps, XP & Vista over a network

[ideas]

hello again, just wanted to know whats the best yet quickest way to install Windows XP or Vista on a network PC and also how to install any application to these network PC from my Server (XP, Server 2K3, Vista or Server 2K8)

[rendrag]

RIS? I think that's still valid.

you could create an unattended image to install remotely.

http://msdn2.microsoft.com/en-us/library/aa967394.aspx

http://support.microsoft.com/kb/832017