Vista - Exchange Management Shell Command from vbscript

hi,

How do I start an EMSC (Exchange Management Shell Command) from a vbscript?
I've tried something like this:

oShell.Run "PowerShell.exe -PSConsoleFile exshell.psc1 -noexit -command
Enable-DistributionGroup -identity " & GroupName, 1, True

It does start the Exchange Management Shell from PowerShell, but it does not
perform the command - in this case Mailenabling a distributiongroup.

Doing the same command from an Exchange Management Shell window is doing the
job OK.

So how do I do it from vbscript?

Any help is very appreciated.

Thanks,
Hans Peder