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CLSID Structure

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

This structure supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Serves as a wrapper for a globally unique identifier (GUID) for a COM class.

Namespace: Microsoft.Aspnet.Snapin
Assembly: AspNetMMCExt (in aspnetmmcext.dll)

public struct CLSID
public final class CLSID extends ValueType
JScript suports the use of structures, but not the declaration of new ones.

The CLSID structure wraps the COM class identifier (CLSID) structure, which serves as a unique identifier for a specific COM class.

CLSID is an abbreviation for class identifier, in the same way that GUID is an abbreviation for globally unique identifier. Both abbreviations refer to a 128-bit integer with a low statistical likelihood of being duplicated so that it can be used as a unique identifier across computers and networks. Typically, this identifier is represented either as a 16-member array of bytes or as a specially formatted string of hexadecimal digits (where the characters a-f, or A-F, represent the decimal numbers 10-15). This string representation consists of either 32 contiguous hexadecimal digits or of groups of 8, 4, 4, 4, and 12 hexadecimal digits, separated by hyphens. The hyphenated string representation optionally can be enclosed in parentheses or braces ({}).

For more information:

  • About unique identifiers and their format, see Guid.

  • Programming with the CLSID structure and the Microsoft Management Console (MMC), see the "MMC Programmer's Guide" in the MSDN Library.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, 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

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