Exchange Services

Exchange Services

Exchange is not engineered as a single monolithic server process. It is broken down into a number of separate processes, each of which runs as a Windows NT service. The collective group of these services make up the application we call Exchange. The table below lists the most important of these services together with the name of the executable that you?ll see in the list of active processes. All the executables are stored in the \EXCHSRVR\BIN directory.

Table 5.1: Major Exchange services

Name of Service

Executable

System Attendant

MAD.EXE

Directory

DSAMAIN.EXE

Information Store

STORE.EXE

Message Transfer Agent

EMSMTA.EXE

Internet Mail Service

MSEXCIMC.EXE

Internet News Service

EXCHINS.EXE

Directory Synchronizer (MS-Mail)

DXA.EXE

Key Management Service

KMSERVER.EXE

The Services applet of the Windows NT control panel controls how services are run. Figure 5.1 lists the services running on a computer, and shows that a number of Exchange services are active. Note the start-up state for each service. All of the Exchange services are ?automatic?, meaning that they will be started up without manual intervention each time the computer is booted. This is the preferred state, as anything else will force the system administrator to select each service and start it up after a system reboot. Not only is this boring work, but it?s impossible to be there each time a computer is restarted.

Figure 5.1: Exchange services

Selecting the service and then clicking on the start-up button can change the start-up type for a service.

Apart from the start-up type, the...

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