"Paul Russell" <> wrote in message
news:22EEBE45-66F6-4830-9DC8-...
> The browser will load update.microsoft.com but the actual binding of the
> WUA agent will be to which ever service it is registered for.
>
> In this case, WSUS managed means updates will come from WSUS ... so the
> browser experience will be a falsetto of what is truly going on under the
> covers since the activeX is trolling over WUA.
I'm sorry, Paul, but this is not a true statement, and the proof is logged
in the WindowsUpdate.log when such an event occurs.
If you want unequivocal proof, however, just pull the plug on the WSUS
Server and watch the WUA trip happily along downloading from WU -- oblivious
to the fact that the WSUS server has gone away. Only when the WUA executes
the next regularly scheduled "WSUS" detection will it log errors that it
cannot connect.
Furthermore, if what you say were true, it would be *impossible* to install
updates from Microsoft Update in a WSUS environment unless the *content*
were actually physically present on the WSUS Server -- where would the WUA
get the content from? Since I have routinely used MU to download and install
service packs (because I don't generally keep SP content on my WSUS server),
I can empirically attest to the fact that the WUA will happly detect and
acquire content from =WU/MU=, irrespective of the setting of the UseWUServer
registry value, and regardless of whether the content is even synchronized
to that WSUS server.
For the sake of convenience,though, here's a scan against WU/MU just
performed on my WSUS-configured Windows 7 system by clicking on "Check for
updates from Microsoft Update", and then immediately after reran a detection
against my WSUS server. (Note: I have declined any "RC" updates on my WSUS
server, and currently I have =zero= updates on the WSUS Server reported as
"Needed" by this system.)
Results from WU:
2009-10-30 00:43:08:318 1116 11c4 PT + ServiceId =
{7971F918-A847-4430-9279-4A52D1EFE18D}, Server URL =
https://www.update.microsoft.com/v6/...ce/client.asmx
2009-10-30 00:43:31:361 1116 11c4 Agent * Found 50 updates and 63
categories in search; evaluated appl. rules of 1090 out of 1520 deployed
entities
Results from WSUS:
2009-10-30 00:43:41:312 1116 11c4 PT + ServiceId =
{3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}, Server URL =
http://sbs2003r2:8530/ClientWebService/client.asmx
2009-10-30 00:43:50:749 1116 11c4 Agent * Found 0 updates and 61
categories in search; evaluated appl. rules of 574 out of 794 deployed
entities
Note also that the number of categories (WU: 63; WSUS: 61), the total number
of updates in the catalog (WU: 1520; WSUS: 794), and the number of updates
actaully evaluated (WU: 1090; WSUS: 574) is different in every case, and
scanning against WU identified =50= applicable updates.
--
Lawrence Garvin, M.S., MCITP:EA, MCDBA
Principal/CTO, Onsite Technology Solutions, Houston, Texas
Microsoft MVP - Software Distribution (2005-2009)
My Blog:
http://onsitechsolutions.spaces.live.com
Microsoft WSUS Website:
http://www.microsoft.com/wsus
My MVP Profile:
http://mvp.support.microsoft.com/pro...awrence.Garvin