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Environment.HasShutdownStarted Property

Gets a value indicating whether the common language runtime (CLR) is shutting down.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public static bool HasShutdownStarted { get; }

Property Value

Type: System.Boolean
true if the CLR is shutting down; otherwise, false.

When the CLR shuts down, it starts the finalizer thread on all objects that have a finalizer method. The HasShutdownStarted property returns true only after the finalizer thread has been started. The CLR unloads the application domain at this time; therefore, the AppDomain.IsFinalizingForUnload method also returns true.

This property returns false if the finalizer thread has not been started.

By using this property, you can determine whether to access static variables in your finalization code. If the CLR is shutting down, you cannot reliably access any object that has a finalization method and that is referenced by a static field. This is because these objects may have already been finalized.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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