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RegistrationServices.RegisterTypeForComClients Method (Type, Guid)

Registers the specified type with COM using the specified GUID.

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

public virtual void RegisterTypeForComClients(
	Type type,
	ref Guid g


Type: System.Type

The Type to be registered for use from COM.

Type: System.Guid

The Guid used to register the specified type.


IRegistrationServices.RegisterTypeForComClients(Type, Guid)


The type parameter is null.


The type parameter cannot be created.

This method is equivalent to calling CoRegisterClassObject in COM. The RegisterTypeForComClients method is not atomic and can cause unpredictable results when used in a multithreaded context.

In version 2.0 and later, use the UnregisterTypeForComClients method to unregister a type in COM.

Note that using platform invoke to call the unmanaged CoRegisterClassObject and CoDisconnectObject methods for registration and unregistration of COM objects is not supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.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 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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