Hi all! I have trouble with e2k3 instalation. I have W2K DC with Exch2K installed on it. I want to deploy Exch2003 on another server running Win2003 (also DC, windows 2000 native mode). Forestprep and Domainprep succeed, but setup itself failed with error "During installation Base-DAV sub-component failed with error 0x80072030." If I install Exch2003 on stand-alone windows 2003 server, setup succeed, but I am not able to install Exch2003 into existing Exch2000 organisation. Can anybody help? Thanx, Karel Rudisar kr@xxxxx