I have a native Windows 2000 domain, and recently upgraded Exchange 5.5 to Exchange 2000. I don't recall running ADPREP at the time. Now I'm trying to run DCPROM on a Windows 2003 server and I have to upgrade the active directory. When I run ADPREP /forestprep it fails at the first step, saying sch14.ldf is busy. Am I missing something?