Hi Gurus, Iam going to start my uninstall of exch 5.5 servers as part of migration. I have 16 sites . all the 15 sites is configured to have a single site connector with my main site.All the 16 sites have 1 exch 5.5 server left to be uninstalled. 1) For the main site: Local Bridge head ---> CCCsdena02(exch 5.5 server) Target servers--> exch 2003 server 2) For the 15# remote sites Local bridge head --->exch 5.5 server Target servers ------> CCCSdena02 ( exch 5.5) Q) How to start the unistallation with the 5.5 servers? ( which site to start with etc) *** Q) For changing the local bridge head and target servers, do we need to connect to that site/ server ( rather than through the exchange adminstrator) Thanks Raj