http://msmvps.com/blogs/bradley/archive/2008/01/28/windows-vista-sp1-will-be-released-as-an-update-on-microsoft-update-mu.aspxEDIT -- the proper hotfix is: You cannot distribute or install a software package in Windows Server 2003 if the software package contains a very large signed file: http://support.microsoft.com/kb/938759/en-us http://blogs.technet.com/systemcenteressentialsenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/bradley/archive/2008/01/28/windows-vista-sp1-will-be-released-as-an-update-on-microsoft-update-mu.aspx#1485616Tue, 29 Jan 2008 13:54:03 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1485616Kevin Royalty<p>I note that in the KB no reference to SBS at the bottom. &nbsp;Oversight, or not recommended that we apply it to our SBS boxen?</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1485616" width="1" height="1">