Cannot Set up Pop3 for exchange server 2003 - Error message: The POP3 service cannot be started when Exchange Server is installed

I am running Windows 2003 enterprise server with Exchange Server 2003 Standard, and I need to set up pop3 to handle email through exchange server.
I tried to Add the mail server role, and have also gone through Add/Remove programs to install the pop3 service. When I add the role, it completes with errors. Trying to start the service manually does not work. I get a few errors in the Application Log:
1. The Microsoft POP3 service stopped with error code 203
2. The POP3 Service cannot be started when Exchange Server is Installed
I have tried uninstalling/reinstalling the mail server role
I know that the Microsoft POP3 service is NOT the correct service, and that I need the Microsoft Exchange POP3 service, but I cannot find out how to install it. How can I get the right POP3 service installed?

Any help greatly appreciated, the sooner the better
Thanks,
Chris



wibuusAsked:
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SembeeCommented:
You don't have to install the POP3 service, because it is already there. Just isn't enabled.

Go in to Services, and you should be able to find the Exchange POP3 server service. It will be disable. Change the startup state to Automatic. Don't start it in there though.
Then go in to ESM, Servers, <your server>, Protocols, POP3. Right click on the Default and Choose Start.

Simon.
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carl_legereCommented:
I think he is referring to the POP3 server you can install from add/remove windows components for windows 2003, for those folks who are trying to use windows 2003 and NOT exchange for email.  
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wibuusAuthor Commented:
I checked for the Exchange POP3 Service. It's not there at all. I might just try uninstalling Exchange Server, then uninstalling the 2k3 pop3 service, then reinstalling. I'm not sure if this will help, but I hear the services aren't compatible
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SembeeCommented:
You do realise what is involved to reinstall Exchange?

http://support.microsoft.com/default.aspx?kbid=320202

The service should be listed with the other Exchange services as "Microsoft Exchange POP3" and is disabled by Default.
You need to enable it in Services, then start it through ESM.
It will have been there originally, as you cannot install Exchange without the service being there.

Simon.
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wibuusAuthor Commented:
Unfortunately, I do know what's involved... ugh. But that's the problem. Its not there! I've gone through services, tried reinstalling the server role as a mail server, tried Add/Remove programs. I've tried enabling in ESM even though the service wasn't there. The only service that does show up is "Microsoft POP3", which is incompatible with Exchange Server's POP3 service. When I use that one, I get the errors mentioned above. I think something may have gone wrong when Exchange was originally installed a few weeks ago.
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wibuusAuthor Commented:
I reinstalled Exchange Server and it works! Thanks for the help!
Chris
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wibuusAuthor Commented:
I found out what the problem really was. When you add the Mail server role, Server 2003 REMOVES the Exchange Server POP3 Service and installs the microsoft pop3 service. When you uninstall the mail server role, it just removes it. Unfortunately, the only fix I know of for this is reinstalling exchange 2003. If anyone knows a better fix, I'd love to hear it
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hindsightCommented:
I have the same issue, followed the directions of reinstalling IIS and Exchange. Everything works again.
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