Our existing NT domain and Exch5.5 site (PDC, BDC and Exch 5.5) are still in place. My manager has set up a separate Win2K forest in native mode. We now want to upgrade/migrate the NT domain and Exch5.5 site (PDC, BDC and Ex5.5) and make it part of (or join it to) the Win2K forest. I know of external trust between forests. Is there a way to make these two a single forest w/o external trust? Please help, anyone.
