I'm having the infamous OMA problem on my Windows Server 2003, in which logging onto http://servername/oma
gives "Outlook(R) Mobile Access is supported only on Microsoft(R) Exchange Server 2003. Currently your mailbox is stored on an older version of Exchange server. Please contact your system administrator for additional assistance." along with an MSExchangeOMA application error - Category 1000, EventID 1802.
I've followed the MIcrosoft KB 817379 instructions for creating an Exchange virtual directory, with no SSL and with the registry mods. I've used this successfully on several SBS servers, but it doesn't correct the problem here.
Thanks in advance for your help.