DOCUMENT:Q164564 05-MAY-1999 [exchange] TITLE :XADM: How to Install Exchange 4.0 in an Exchange 5.0 Site PRODUCT :Microsoft Exchange PROD/VER:winnt:4.0,5.0 OPER/SYS: KEYWORDS:kbsetup kbusage ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 4.0, 5.0 ------------------------------------------------------------------------------- SUMMARY ======= This article concerns a scenario in which you have an existing Microsoft Exchange Server site and one of the servers in that Site is running Exchange Server 5.0. This article tells you how to install Exchange Server 4.0 in an Exchange Server site that contains an Exchange Server 5.0 computer or is in a site connected to another site that contains an Exchange Server 5.0 computer. MORE INFORMATION ================ The Support folder on the Exchange Server 5.0 CD contains an updated Setup.exe file. Use this Setup.exe file when setting up Exchange Server 4.0 in a site that contains an Exchange Server 5.0 computer. To set up Exchange Server 4.0: 1. Copy the Setup\ (such as I386, Alpha, and so on) directory from the Exchange Server 4.0 CD to a blank directory on the hard disk drive. 2. Copy Support\Exch40\\Setup.exe from the Exchange Server 5.0 CD to the directory that you created in step 1. This will overwrite the older Setup.exe file. 3. From the directory you created in step 1, run the new Setup.exe program that you copied in step 2. These steps must be followed because when Exchange Server 5.0 is installed in a Site with Exchange 4.0 Server computers, the schema of all the servers in that site and all sites that have a Directory Replication Connector to that site will be upgraded and the older version of Setup.exe will not work correctly. Once this is done, installing Exchange Server 4.0 in that site will fail because the Exchange Server 4.0 directory handle these new object types. Replication with the other servers will fail, or the server will stop operating correctly. The new version of Setup.exe supplied on the Exchange Server 5.0 CD was modified so that the Exchange Server 4.0 can handle these new object types, allowing Setup to work correctly. ====================================================================== Keywords : kbsetup kbusage Technology : kbExchangeSearch kbExchange500 kbExchange400 kbZNotKeyword2 Version : winnt:4.0,5.0 Issue type : kbhowto ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.