Hello to everyone. Please help me! I have made a damage! I have made a migration from Exchange 2003 to Exchange 2007: all was OK! Then I have followed the procedure to remove the Exchange 2003 server from domain: I don't know what is happened, but now Information Store service of Exchange 2007 doesn't start! I have checked the Active Directory Configuration with Adsi Edit and I have discovered that I have lost some information in "CN=Services,CN=Microsoft Exchange,CN=Corporate,CN=Administrative Groups,CN=Exchange Administrative....,CN=Servers,CN=MailServer"... for example I haven't CN=Information Store. I try to execute setup /prepareAD, but nothing happens. Now I have only an idea: I install a new server with Exchange 2007, with the same name and the same settings... then I manually copy all the lost data in AdsiEdit... is it a good idea? Please help me: I have only this night to solve this problem! Thank you in advance for your support. Alessandro

Hi, You can't install a new server with the same name and the same settings (the old server is still there). You don't have a backup of your active directory - it should be relatively safe to restore this if not too old. Leif

Dear Leif, thank you for your reply. In this moment I have already installed a new domain controller in a new network with a new EX2007 server (with the same name and settings of the real one). In your opinion I have some possibilities to repair my damage copy of the Active Directory configuration manually through Adsi Edit? I hope... this is a very big problem for me. Thank you for your support! Alessandro