UnregisterAssembly Class
This API supports the product infrastructure and is not intended to be used directly from your code.
Implements the UnregisterAssembly task. Use the UnregisterAssembly element in your project file to create and execute this task. For usage and parameter information, see UnregisterAssembly Task.
MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.
Assembly: Microsoft.Build.Tasks.Core (in Microsoft.Build.Tasks.Core.dll)
System::MarshalByRefObject
Microsoft.Build.Utilities::AppDomainIsolatedTask
Microsoft.Build.Tasks::AppDomainIsolatedTaskExtension
Microsoft.Build.Tasks::UnregisterAssembly
| Name | Description | |
|---|---|---|
![]() | UnregisterAssembly() | This API supports the product infrastructure and is not intended to be used directly from your code. Initializes a new instance of the UnregisterAssembly class. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0. |
| Name | Description | |
|---|---|---|
![]() | Assemblies | This API supports the product infrastructure and is not intended to be used directly from your code. Gets or sets the assemblies to be unregistered. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0. |
![]() | AssemblyListFile | This API supports the product infrastructure and is not intended to be used directly from your code. Gets or sets information about the state between the RegisterAssembly task and the UnregisterAssembly task that the UnregisterAssembly task uses to avoid unregistering an assembly that failed to register in the RegisterAssembly task. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0. |
![]() | BuildEngine | Gets or sets the build engine interface that is available to tasks. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTask.) |
![]() | HelpKeywordPrefix | Gets or sets the prefix that is used to compose Help keywords from string resource names. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTask.) |
![]() | HostObject | Gets or sets a host object instance that is associated with the derived Task. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTask.) |
![]() | Log | This API supports the product infrastructure and is not intended to be used directly from your code. Gets an instance of a TaskLoggingHelperExtension class containing task logging methods. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTaskExtension.) |
![]() | TaskResources | Gets or sets culture-specific resources of the derived Task. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTask.) |
![]() | TypeLibFiles | This API supports the product infrastructure and is not intended to be used directly from your code. Gets or sets a Boolean value that specifies whether to unregister the specified type library from the specified assembly. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0. |
| Name | Description | |
|---|---|---|
![]() | CreateObjRef(Type^) | (Inherited from MarshalByRefObject.) |
![]() | Equals(Object^) | (Inherited from Object.) |
![]() | Execute() | This API supports the product infrastructure and is not intended to be used directly from your code. Executes the UnregisterAssembly task. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Overrides AppDomainIsolatedTask::Execute().) |
![]() | Finalize() | (Inherited from Object.) |
![]() | GetHashCode() | (Inherited from Object.) |
![]() | GetLifetimeService() | (Inherited from MarshalByRefObject.) |
![]() | GetType() | (Inherited from Object.) |
![]() | InitializeLifetimeService() | When overridden in a derived class, gives tasks infinite lease time. MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.(Inherited from AppDomainIsolatedTask.) |
![]() | MemberwiseClone() | (Inherited from Object.) |
![]() | MemberwiseClone(Boolean) | (Inherited from MarshalByRefObject.) |
![]() | ToString() | (Inherited from Object.) |
Framework64/<version>/UnRegisterAssemblyTask cannot resolve a library of COM objects registered as 32-bit components. Framework/<version>/UnRegisterAssemblyTask cannot resolve a library of COM objects registered as 64-bit components.
For example, if you register a library of COM objects called ClassLibrary1 as 32-bit components on a 64-bit machine, run Visual Studio, and change the target to x64, the build fails with the following error:
ClassLibrary1.dll is not a valid assembly
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



