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WindowsBuiltInRole Enumeration

Specifies common roles to be used with IsInRole.

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

public enum class WindowsBuiltInRole

Member nameDescription
AccountOperatorAccount operators manage the user accounts on a computer or domain.
AdministratorAdministrators have complete and unrestricted access to the computer or domain.
BackupOperatorBackup operators can override security restrictions for the sole purpose of backing up or restoring files.
GuestGuests are more restricted than users.
PowerUserPower users possess most administrative permissions with some restrictions. Thus, power users can run legacy applications, in addition to certified applications.
PrintOperatorPrint operators can take control of a printer.
ReplicatorReplicators support file replication in a domain.
SystemOperatorSystem operators manage a particular computer.
UserUsers are prevented from making accidental or intentional system-wide changes. Thus, users can run certified applications, but not most legacy applications.

These roles represent the local Windows groups common to most installations of Windows NT, Windows 2000 and Windows XP.


In Windows Vista, User Account Control (UAC) determines the privileges of a user. If you are a member of the Built-in Administrators group, you are assigned two run-time access tokens: a standard user access token and an administrator access token. By default, you are in the standard user role. When you attempt to perform a task that requires administrative privileges, you can dynamically elevate your role by using the Consent dialog box. The code that executes the IsInRole method does not display the Consent dialog box. The code returns false if you are in the standard user role, even if you are in the Built-in Administrators group. You can elevate your privileges before you execute the code by right-clicking the application icon and indicating that you want to run as an administrator.

The following example shows the use of the WindowsBuiltInRole enumeration.

   static void DemonstrateWindowsBuiltInRoleEnum()
      AppDomain^ myDomain = Thread::GetDomain();

      myDomain->SetPrincipalPolicy( PrincipalPolicy::WindowsPrincipal );
      WindowsPrincipal^ myPrincipal = dynamic_cast<WindowsPrincipal^>(Thread::CurrentPrincipal);

      Console::WriteLine( "{0} belongs to: ", myPrincipal->Identity->Name );

      Array^ wbirFields = Enum::GetValues( WindowsBuiltInRole::typeid );

      for each ( Object^ roleName in wbirFields )
            Console::WriteLine( "{0}? {1}.", roleName,
               myPrincipal->IsInRole(  *dynamic_cast<WindowsBuiltInRole^>(roleName) ) );
         catch ( Exception^ ) 
            Console::WriteLine( "{0}: Could not obtain role for this RID.",
               roleName );

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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