Microsoft Windows NT 4.0 Guide Instrukcja Użytkownika Pobierz pdf (Strona 93)

Microsoft

Windows Server

™

2003 White Paper

Windows NT 4.0 Server Upgrade Guide 88

%systemroot%\System32 folder. At startup, Svchost.exe checks the services portion of the

registry to construct a list of services that it needs to load. Multiple instances of Svchost.exe can

run at the same time. Each Svchost.exe session can contain a grouping of services so that

separate services can run depending on how and where Svchost.exe is started. This flexibility

provides better control and debugging.

Svchost.exe groups are identified in the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Svchost

Each value under this key represents a separate Svchost group and appears as a separate

instance when you are viewing active processes. Each value is a REG_MULTI_SZ value and

contains the services that run under that Svchost group, as Figure 39 shows. Each Svchost group

can contain one or more service_names extracted from the following registry key, whose

Parameters key contains a ServiceDLL value:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Service

Figure 39. Svchost key in registry

It is helpful to know what processes are running on a computer. By opening the Processes tab in

the Task Manager application, a list of currently running processes can be viewed. Typically more

than one Svchost.exe process will be running on a healthy Windows Server 2003 server as Figure

40 shows. Through the use of these registry locations, you can understand the purpose of each

instance of Svchost.exe.

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Microsoft Windows NT 4.0 Guide Instrukcja Użytkownika Strona 93