I am installing 2007 beta 2 in an environment with two EX2K3 servers. The installation was proceeding well until it came to the "Client Access Role" which failed as did the next two roles - mailbox and UM. (Sorry, I didn't record the error message) I rebooted and restarted the installationvia "Change" on the Add/Remove applications applet. This time "Client Access" installed but the "Mailbox Role" never gets beyond "Configuring Components" (the progress bar is at 50%). I have waited over an hour, killed the application and retried with the same results. I can see that there is some network traffic to the GC. Any ideas? Alan

Hello Alan, What is your operating system and version (2003 sp1 or 2003 r2)? Try this one.. Exsetup /mode:install /role:mailbox /sourcedir:<your-souce-installation-files> Best Regards,

Hello Anderson, The other servers in the domain are WIN2K3 SP1 but for this EX2K7 install I used WIN2K3 R2. I tried your command line sugestion but it hung again after displaying: Copying Exchange Files ......................... COMPLETEDMailbox Role ............ 50% Any thoughts? Alan

I spoke too soon!! After leaving it for 3 hours it did complete!! Thanks.