Didier.T

Josh,

Thanks,
That worked !
Detail:
For a computer account this is ok
For an OU I still miss the group policy tab
But now if I select a user ( which is not the normal icon for user, infact
all icons are like text file icons , except OU's) , i still get an error on a
certain snap-in. ( probably the exchange one)
When I checked the system manager of exchange, I get the same error as for
ADUC .
Any idea which dll's I need to register to get the System manager working
again?

Thanks for your help

Regards,
Didier