Thanks Mike,

ox=GETOBJECT("Windows NT://mydomain/mycomputer/Administrators")
ox.delete("myuser")

The syntax above seems that it will delete a user, but I want to remove a user from a group.

I tried it anyway and got: "OLE error code 0x800401ea: Moniker could not open file".

ox=GETOBJECT("Windows NT:\\mu005873\Administrators")

Can you help me again?

Fernando