When I try to install WSS 3.0 SP2 x64 on my WSS 3.0 x64 RTM instance, I immediately get an error directing me to http://support.microsoft.com/kb/945967. It appears I must install WSS 3.0 SP1 1st, but I was sure that I could install WSS SP2 directly on RTM. Getting the SP1 files into my environment is a real pain and I'd have to repeat a 2.5 hr backup process during non-business hrs (waa waa, I know). Say it ain't so, Joe...

Hi Angrydot, According to this article http://blogs.msdn.com/sharepoint/archive/2009/04/28/announcing-service-pack-2-for-office-sharepoint-server-2007-and-windows-sharepoint-services-3-0.aspx You can install WSS/Sharepoint SP2 without SP1. Q: Can I install SP2 on RTM? Can I install SP2 on RTM + SP1? Can I install SP2 on RTM + SP1 + IU? Can I insall SP2 on RTM + SP1 + some CU? A: All yes. SP2 can be installed directly on any build before Febrary 2009. For CU releases after SP2, we suggest you install SP2 first, then apply those CU packages. Are you trying to install the slipstream version ? If the answer is yes, I think that's the problem. You should install only SP2 not the slipstream version. Download Links for SP2 Service Pack 2 for Windows SharePoint Services 3.0, x86 & x64 http://www.microsoft.com/downloads/details.aspx?FamilyId=79BADA82-C13F-44C1-BDC1-D0447337051B&displaylang=en Service Pack 2 for Office SharePoint Server 2007, x86 & x64 http://www.microsoft.com/downloads/details.aspx?FamilyId=B7816D90-5FC6-4347-89B0-A80DEB27A082&displaylang=enMon Blog/My Blog (in french) LinkedIn