>Thanks for your answer Mike.
>The example you give me works fine:
>oUser = GETOBJECT("WinNT://serverh/hlizarraga,User")

>but why not this others:
>oUser = GETOBJECT("WinNT://Informatica/Rhdinf14/hlizarraga,User")
>oComputer = GETOBJECT("WinNT://Rhdinf14,Computer")

It depends on your domain structure. In my case here at Microsoft, I'm a user on the domain, and my box also belongs to a domain. In your first example above, I'm willing to bet that you aren't a user on that box. serverh/hlizarraga may be a user on that box, but just plain hlizarraga isn't.

In your second example, your computer probably belongs to a domain, so the domain server needs to be specified. In this case, you're saying that Rhdinf14 is at the top of the domain, and it isn't.