Hi. I have an serious problem with my Exchange server 5.5, running on a Windows NT 4.0 server. Two of the services won't start: Microsoft Exchange connector for POP3 Mailboxes, and the Microsoft Exchange Internet Mail service. When I try to start the services, I get the error message: "Could not start the Microsoft Echange Internet Mail Service service in \\SERVER. Error 2140: An internal Windows NT error occured." This error message is described in the article 271867, http://support.microsoft.com/default.aspx?scid=kb;en-us;271867 There exists no backup of the metabase.bin file whatsoever. Before I follow the solution as described in arcticle 234429, http://support.microsoft.com/default.aspx?scid=kb;en-us;234429 my question is: What problems will I face when I have followed the procedure in article 234429? One reason why I haven't tried the solution yet is because the server has lost the internet connection, but all other computers on the LAN still have the internet connection in order. All users can still ping the server, they can use the files on the server as usual, they log on the server as usual, and they can print as usual. Is my diagnose correct, when I say that the problem is the metabase.bin file has been become corrupted? In the event viewer, there are also other error messages, when I get the before mentioned error: Event ID: 4057, and event ID 3040, both are saying pretty much the same: Unable to resolve delivery route. I have checked the DNS, and it is correct configured. Does event ID 4057 and event ID 3040 appear as a result of the: Error 2140? This was pretty much information, but I hope someone can help me. I have forgot to check what version the IIS is, and what NT4 service pack the server is running, but I hope someone still can help me. Regards, Tore