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Editorial Team
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Asked: 2026-05-13T18:33:15+00:00

What is the exactly definition of Runtime Host? From MSDN : The common language

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What is the exactly definition of Runtime Host?

From MSDN:

The common language runtime has been designed to support a variety of different types of applications, from Web server applications to applications with a traditional rich Windows user interface. Each type of application requires a runtime host to start it. The runtime host loads the runtime into a process, creates the application domains within the process, and loads user code into the application domains.

So is it a process which loads the runtime into another process?
How do I check it in Task Manager?

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1 Answer

  1. Editorial Team

    No, it’s a process that loads the runtime DLLs ( e.g. mscoree.dll, etc ) into its process space.

    So there is only 1 process space.

    The runtime that is referred to is really the .Net runtime or CLR. And from a simplified traditional OS point of view, the CLR is really just a set of DLLs. So, you need a OS process to load and execute the entry point of that DLL. This hosting executable is your runtime host. In reality the .Net runtime host does a lot of things for the CLR ( See Hosting Overview )

    You mentioned MSDN, so I guess you’ve looked at Runtime Hosts on there. You can see the examples they give are all executables that host the CLR ( DLLs ).

    Hope that helps.

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