If value of this property returns True, that
means that wodAppUpdate has found wodUpdS2 service to be
running with administrative privileges, and that it can be
used to replace current binaries correct, with
administrative privileges, even if user who is performing
the update doesn't have administrative privileges.
More details about wodUpdS2 service:
Update service can be installed on deployed system (but
is not neccessary for wodAppUpdate operation) if you want
to avoid Vista operating system to show UAC prompt whenever
regular user wants to update your application. This can
potentially be a problem if regular user does not know
administrator password and is not in administrator group -
in which case update will fail. Same problem may occur on
Windows XP if user belongs to restricted group.
Update service runs with administrative privileges, but
is incapable of performing any other task than replacing
your application files, thus is completely safe. It takes
no CPU usage - it will be idle until request is made from
wodAppUpdate for the update to be performed. When your
application detects new update, and founds wodUpSv update
service to be available, it will pass replacement-task to
the service, and application will close itself. Now update
service silently replaces your application files, and runs
it again with same set of privileges as original
application. UAC prompt is not required or shown for
the update in this case.
If update service is not found, wodAppUpdate performs
file-replace operation by itself, rising UAC elevation
prompt if neccessary to perform actual replacement.
Also, it is possible that even update service is
installed that it's not used at all. If application has
sufficient privileges to update itself, it will do so
without help of the service.
Installing and removing wodUpdS2 service:
In order to install wodUpdS2.exe on deployed system,
just copy that file to SYSTEM32 folder, and run it with -i
- wodUpdS2 -i
Update service will install and run itself this way. No
further steps are neccessary.
If you want to remove Update service from the system,
just call it with -u switch
- wodUpdS2 -u
and it will stop and remove itself from the system. You
still have to delete wodUpdS2.exe file by yourself.