Insisting w2k sp4 WILL get installed on a server

Yesterday was patch day at the office with the ie patches being deployed and as it was the first of the month I decided to check the servers to make sure they were uptodate. One of them was still on Servicepack3 so it was way overdue an upgrade to sp4. However on installing it this morning, it failed and rolled back. The svcpack.log in the winnt directory gave me

Starting process:  C:\WINNT\system32\wzcsetup.exe /i /P

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Return Code = 2148467211 

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DoInstallation:RunInfProcesses for ProcessesToRun Failed

Searching on google groups I came across the thread where somone else had the same problem installing sp4. I followed the installation of the wireless networking patch (even though like the original poster I don’t have wireless networking on the lan, let alone this machine), rebooted the server...and then users were in the office and I had to postphone the sp4 update....for about 5 minutes until I told persuaded them to let me try it one more time - and it worked.
Thanks to Emmers Presson and Leonard Severt for their words of wisdom on google 9 months ago!