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ApplicationIDAttribute Class

Specifies the application ID (as a GUID) for this assembly. This class cannot be inherited.

Namespace:  System.EnterpriseServices
Assembly:  System.EnterpriseServices (in System.EnterpriseServices.dll)

[AttributeUsageAttribute(AttributeTargets.Assembly, Inherited = true)]
public sealed class ApplicationIDAttribute : Attribute

ApplicationIDAttribute takes a GUID in its constructor. When registration occurs, the components in the assembly are installed in an application with the given ID.

The following code example demonstrates the use of the ApplicationIDAttribute type.

using System;
using System.EnterpriseServices;
using System.Reflection;

// References: 
// System.EnterpriseServices 

// The GUID (Globally Unique Identifier) shown below is for example purposes 
// only and should be replaced by a GUID that you have generated.
[assembly: ApplicationID("727FC170-1D80-4e89-84CC-22AAB10A6F24")]

public class ApplicationIDAttribute_Value : ServicedComponent
    public void ValueExample()
        // Get the ApplicationIDAttribute applied to the assembly.
        ApplicationIDAttribute attribute =

        // Display the value of the attribute's Value property.
        Console.WriteLine("ApplicationIDAttribute.Value: {0}",


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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

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