Windows Server - How does the wuauclt client get updated?

Asked By Barkley Bees on 13-Feb-08 12:13 AM
I have many XP client machines that have the old wuaclt.exe version
'5.4.3790.2180'. If I set the GPO to point to my WSUS 2.0SP1 server will it
automatically update them to wuauclt.exe version '7.0.6000.381' or do I need
to run 'wuauclt.exe /detectnow' on the client?

eddie replied on 13-Feb-08 07:09 PM
Yes (well to 7.0.6000.374). The first thing the client will do is check the
server to see if the client needs to be updated and then do a selfupdate if
needed. You should be able to see that in the windowsupate.log when it

Eddie Bowers
Security Support
Microsoft Corporation

This posting is provided "AS IS" with no warranties, and confers no rights.
SteveNewb replied on 14-Feb-08 05:31 AM
Hi Eddie,

If you are using WSUS SP1 as an SCCM SUP, and you are using it on a custom
port, with port 80 disabled, will there be issues with the self-update or
does that fact that you are using a CM client mean that Windows gains this
custom port information from the SUP and therefore allows the client to


Harry Johnston [MVP] replied on 14-Feb-08 02:36 PM
I don't know anything about SCCM SUP, but in general: if your WSUS server
doesn't support port 80, then very old clients won't be able to self-update.
However, it you install the most recent downloadable client (or any client less
than a few years old) it will be able to self-update to the WSUS SP1 version.