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AppDomain::SetAppDomainPolicy Method

Note: This API is now obsolete.

Establishes the security policy level for this application domain.

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

[ObsoleteAttribute(L"AppDomain policy levels are obsolete and will be removed in a future release of the .NET Framework. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")]
virtual void SetAppDomainPolicy(
	PolicyLevel^ domainPolicy
) sealed


Type: System.Security.Policy::PolicyLevel

The security policy level.




domainPolicy is nullptr.


The security policy level has already been set.


The operation is attempted on an unloaded application domain.

Call this method before an assembly is loaded into the AppDomain in order for the security policy to have effect.

The following example demonstrates how to use the SetAppDomainPolicy method to set the security policy level of an application domain.

using namespace System;
using namespace System::Threading;
using namespace System::Security;
using namespace System::Security::Policy;
using namespace System::Security::Permissions;
int main()

   // Create a new application domain.
   AppDomain^ domain = System::AppDomain::CreateDomain( "MyDomain" );

   // Create a new AppDomain PolicyLevel.
   PolicyLevel^ polLevel = PolicyLevel::CreateAppDomainLevel();

   // Create a new, empty permission set.
   PermissionSet^ permSet = gcnew PermissionSet( PermissionState::None );

   // Add permission to execute code to the permission set.
   permSet->AddPermission( gcnew SecurityPermission( SecurityPermissionFlag::Execution ) );

   // Give the policy level's root code group a new policy statement based 
   // on the new permission set.
   polLevel->RootCodeGroup->PolicyStatement = gcnew PolicyStatement( permSet );

   // Give the new policy level to the application domain.
   domain->SetAppDomainPolicy( polLevel );

   // Try to execute the assembly. 

      // This will throw a PolicyException if the executable tries to 
      // access any resources like file I/O or tries to create a window.
      domain->ExecuteAssembly( "Assemblies\\MyWindowsExe.exe" );
   catch ( PolicyException^ e ) 
      Console::WriteLine( "PolicyException: {0}", e->Message );

   AppDomain::Unload( domain );

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.5
Obsolete (compiler warning) in 4.5.1
Obsolete (compiler warning) in 4.5.2
Obsolete (compiler warning) in 4

.NET Framework Client Profile

Supported in: 3.5 SP1
Obsolete (compiler warning) in 4

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

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