ok, so here's the situation - my client has an SBS2003 Standard (non-R2) box that is running quite happily.
they bought a second server which was going to be for a dedicated service management system, but that project's been canned (nothing to do with me I hasten to add!)
this server is now sitting around not doing an awful lot, so I thought I would dcpromo it so there is a backup dc on the network in case anything should happen to the SBS box.
thing is the new server is 2003 R2, and the SBS server isn't R2, which means I have to run the R2 adprep utility on the SBS box before I can dcpromo the 2nd server.
anyone know if this will work ok? I blatantly do not want to stuff up the production server while trying to introduce some redundancy into the network!!