XP Embedded has a variety of update capabilities. It does not use Windows
Update but can use a similiar option. The OEM who builds the device can set
up a WSUS server to contain updates that they have validated work against
their image. Their XPE boxes can be configured to get updates from that
WSUS server (instead of WindowsUpdate.com).
The OEM could also instead choose to go with a DUA solution (device update
agent). It's lighter weight, but can also be used to update
applications/etc. This poses more work for the OEM.
Rather than just reading snippets here about a few options (and others), I'd
really recommend you go to msdn.microsoft.com/embedded and learn more about
the entire possibility set here. There is no right answer, but to make the
right answer for you, it would be best to learn more about each option.
--Gordon Smith (eMVP)
