Article ID: 149205
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 4.0 Standard Edition
- Microsoft Exchange Server 5.0 Standard Edition
- Microsoft Exchange Server 5.5 Standard Edition
This article was previously published under Q149205
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
SUMMARY
When you run Setup.exe from the Microsoft Exchange Server compact disc, a message is displayed:
Setup is searching for installed components.
The Setup program is looking for an installation of the Exchange Server services and other related information in the registry.
MORE INFORMATION
To detect a previous installation of Exchange Server on your computer, the Setup program checks the HKEY_LOCAL_MACHINE subtree under the following subkey:
\Software\Microsoft\Exchange\Setup
The settings in this registry sub-key are similiar to this:
AdminDest: REG_SZ : C:\EXCHSRVR\BIN
MSMailConnector: REG_SZ : C:\EXCHSRVR
Internet: REG_SZ : C:\EXCHSRVR
Services: REG_SZ : C:\EXCHSRVR
X400: REG_SZ : C:\EXCHSRVR
NOTE: C:\EXCHSRVR is the default path, but the path can be changed and the settings in this registry sub-key display the actual installation directory selected during Setup.
To Hide a Previous Installation of Exchange Server from Setup.exe
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
If you want to prevent Setup from successfully detecting a previous installation of Exchange Server, perform one of the following steps:
- Select the SETUP key and save it to a file, and then delete the key. -or-
- Temporarily modify these settings by completely removing the path.
Keywords: kbinfo kbsetup KB149205
