tip is for Windows SharePoint Services 3.0 and Microsoft Office SharePoint
step test the update in a test farm. Second, test again. Third, make backups (Database
and file system). Okay, now you can start with the upgrade.
the Windows SharePoint Services update/Service Pack on all servers in the farm.
Install the Microsoft Office SharePoint Server update/Service Pack on all
servers in the farm if applicable.
the SharePoint Products and Technologies Configuration Wizard on each server in
the farm. A good start would be the server running the Central Administration
service. Alternatively, you can run psconfig.exe -cmd upgrade –inplace
b2b to accomplish this. Some upgrade errors can be fixed by running
the psconfig.exe command with the psconfig.exe -cmd upgrade –inplace
b2b -force switch also.