WUPublishedAppInstallorElevator class

Hi,
Anyone knows about this class -- "WUPublishedAppInstallorElevator" class?

I'm trying to create UpdateSession class using COM Elevation moniker so that
standard user can evelate privilege as needed.

I was also thinking about other option such as RPC Server running in a
service with system account, so that my client app could call these functions
(which requires Admin privilege).

Any help would be appreciated.
Thanks in Advance.