Windows updates is failing intermittantly on one of our admin machines, it's not on wsus as it's on a seperate network, it's Xp pro sp3, the problem began just after installing sp3. Having googled the error this seems to be common, but it's odd because today I managed to get it to update successfully 5 updates then it went into a decline and refused to update any more. I'm going to run this tommorrow
net.exe stop wuauserv
net.exe start wuauserv
but I can't understand why it will download updates one day and not the next.
It happens from time to time, knickers in a twist etc!
I've used similar to what you're going to try tomorrow and it worked quite well.
There's a tool somewhere that does it for you and probably some more.