Yes. Install BDC move it to a test location, open server
manager and promote it to PDC.

"ZIDAC" <ZIDAC@discussions.microsoft.com> wrote in message news:
> hi, before upgrading, i want to create a lab test, but i have a problem. i
> want to do this:
>
> - install a new BDC, promote to PDC
> - upgrade this PDC to AD 2003
>
> in lab test i can´t promote a new BDC to PDC because the first PDC of my
> LAN
> is in production and i not want touch this.
>
> Is possible promote new BDC to PDC in lab test and to maintain the PDC in
> my
> LAN ?