Voordat je hotfixes of service packs wilt installeren voor Sharepoint....
Volg altijd eerst de volgende artikelen:
Deploy software updates for Windows SharePoint Services 3.0
http://technet2.microsoft.com/windowsserver/WSS/en/library/91649a7e-6b5a-4e5a-9ee5-51951f4b857f1033.mspx
Deploy software updates for Office SharePoint Server 2007http://technet2.microsoft.com/Office/en-us/library/f484f5f2-35bb-4d70-bf56-dd1c4c287c721033.mspx
Succes.