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Module.ModuleVersionId Property

Note: This property is new in the .NET Framework version 2.0.

Gets a universally unique identifier (UUID) that can be used to distinguish between two versions of a module.

Namespace: System.Reflection
Assembly: mscorlib (in mscorlib.dll)

public Guid ModuleVersionId { get; }
/** @property */
public Guid get_ModuleVersionId ()

public function get ModuleVersionId () : Guid

Property Value

A Guid that can be used to distinguish between two versions of a module.

In unmanaged metadata, the GUID returned by the ModuleVersionId property is referred to as the mvid, and is stored in the GUID heap.


More information about metadata can be found in the Common Language Infrastructure (CLI) documentation, especially "Partition II: Metadata Definition and Semantics". The documentation is available online at and

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0