svchost.exe
In the Windows NT family of operating systems, svchost.exe (Service Host, or SvcHost) is a system process which hosts multiple Windows services. Its executable image, %SystemRoot%\System32\Svchost.exe or %SystemRoot%\SysWOW64\Svchost.exe (for 32-bit services running on 64-bit systems) runs in multiple instances, each hosting one or more services. It is essential in the implementation of so-called shared service processes, where a number of services can share a process in order to reduce resource consumption.
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