DOCUMENT:Q147374  21-OCT-2000  [exchange]
TITLE   :XADM: Registry Key Modifications Made During Setup
PRODUCT :Microsoft Exchange
PROD/VER:winnt:4.0,5.0,5.5
OPER/SYS:
KEYWORDS:kbenv exc4 exc5 exc55

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The information in this article applies to:

 - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
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SUMMARY
=======

This article lists the registry modifications made during a normal setup of
Microsoft Exchange Server on a Windows NT Server computer. These registry
entries are added when you set up a new Exchange Server computer in a new
Exchange Site.

MORE INFORMATION
================

Exchange Services
-----------------

 HKEY_LOCAL_MACHINE
   \SYSTEM
     \CurrentControlSet
       \Services
         \<Exchange Service>

Where <Exchange Service> is MSExchangeDS, MSExchangeDX, MSExchangeIS,
MSExchangeMTA, MSExchangeMSMI, and MSExchangeSA. These are used to record the
settings used by the individual Exchange services.

Event Log Settings
------------------

 HKEY_LOCAL_MACHINE
   \SYSTEM
     \CurrentControlSet
       \Services
         \EventLog
           \Application
             \<Exchange Service>

Where <Exchange Service> is MSExchangeDS, MSExchangeIS, MSExchangeMTA,
MSExchangePrivateIS, MSExchangePublicIS, and MSExchangeSA. These are used to
record the settings used by Event Log for the various Exchange services.

Licensing Settings
------------------

 HKEY_LOCAL_MACHINE
   \SYSTEM
     \CurrentControlSet
       \Services
         \LicenseInfo
           \MSExchangeIS

This is used for the license settings of Exchange.

Detect Previous Installations
-----------------------------

 HKEY_LOCAL_MACHINE
   \SOFTWARE
     \Microsoft
       \Exchange
         \Setup

This is used by the Exchange setup program to detect that Exchange is already
installed and where it is installed.

Exchange Admin Settings
-----------------------

 HKEY_CURRENT_USER
   \Software
     \Microsoft
       \Exchange
         \MSExchangeAdmin

For a full list of the values that are set during Exchange Server setup, see the
following files: ADMIN.INS, MSMCON.INS, SERVER.INS, SHARED.INS, SMTP.INS.

Additional query words:

======================================================================
Keywords          : kbenv exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version           : winnt:4.0,5.0,5.5
Issue type        : kbinfo

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