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RegistrationServices.UnregisterTypeForComClients Method

Removes references to a type registered with the RegisterTypeForComClients method.

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)

public virtual void UnregisterTypeForComClients(
	int cookie


Type: System.Int32
The cookie value returned by a previous call to the RegisterTypeForComClients(Type, RegistrationClassContext, RegistrationConnectionType) method overload.

Note that using platform invoke to call the unmanaged CoRegisterClassObject and CoDisconnectObject methods to register and unregister COM objects is not supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

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.