virtualbox.org

I'm running WIndows 7 Ultimate client on a WIndows 7 Ultimate host
The client automatically logs in as the only available user of the client.
I have mapped the \\vboxsrv shares to drive letters in the client.

When i try to run anything (like command prompt) as administrator, the drive mappings are no longer valid anymore ..

What should i do to correct this?

Sounds like something you should ask in a Microsoft / Win7 forum.

not quit as this is not the case in a non-virtual windows 7 client

It looks like \\vboxsrv does not have the same meaning running in a user, or in a elevated environment

That has nothing to do with Virtualbox or \\vboxsvr.
In Windows 7 network drive mappings are only valid/available to the user who configured them.
You should be able to assign drive letters for the shares inside an administrator command prompt or from an elevated explorer.