Hello! I've a Problem with the Outlook Web Access. We've Exchange Server 2000 installed on a Windows Server 2003 and we want to run Outlook Web Access. If we want to get access to the OWA we are able to logon but after that we get the errormessage 404. I've changed authentication settings in the Exchange Server and in the IIS. After that I changed the permissions in the important folders (Exchsrvr\Exchweb, Winnt\System32, Winnt\System32\Inetsrv, Winnt\System32\Wbem, Exchsrvr\Bin, Exchsrvr\RES) but I get the same errormessage when I try to logon. I hope anybody can help me! br Gekko1230

if you try http:/localhost/exchange is does it work? In the IIS Manager, open the properties on the default Web site, and in the IP Address list, click the IP address of this server. You may receive the message "Duplicate name exists" if this IP address has been assigned to another Web site. You will need to set that Web site's address to (All Unassigned), and then set the default Web site to the IP address. After you stop and restart the default Web site, attempt to use OWA again.