I am adding a windows 2003 DC to my Windows 2000 domain. I have run adprep (with /forestprep and /domainprep) on my primary ADC, but I have 2 other ADC in the domain as well. Do I need to run adprep on the other 2 as well? Also, I had to stop file replication services to complete adprep, as I was getting a in use error at one point during forest prep. Is that normal?