I am running ISA 2004 on Windows 2003. My clients are set up as firewall clients. I have read almost all of the threads on Windows Update. Followed Jims article on 9/4/2004 "Windows Update v5 Issues and Workarounds", read Tom's article on "Fix the Windows Update Problem for Web Proxy Clients". I'm not sure this applies since I am set up as a firewall client but I did it anyway. Applied patches from KB867801, KB871260 and KB842773. From the Express Install page my updates are still failing. Hopefully I'm missing something simple. Thanks for your help guys! (and Gals!) Jeb