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Environment.Exit Method

Terminates this process and gives the underlying operating system the specified exit code.

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

[SecurityPermissionAttribute(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public static void Exit(
	int exitCode


Type: System.Int32
Exit code to be given to the operating system.


The caller does not have sufficient security permission to perform this function.

The following example shows the use of the Exit method to terminate program execution and return an exit code to the operating system.

// Example for the Environment.Exit( int ) method.
using System;

class ExitTest
    public static void Main( ) 
            "If this program is invoked with [{0}] " +
            "from the command prompt,", 
            Environment.CommandLine );

        String[ ]   args = Environment.GetCommandLineArgs( );

        // args[0] is the program name and, args[1] is the first argument.
        // Test for a command-line argument.
        if( args.Length > 1 )

            // Parse the argument. If successful, exit with the parsed code.
                int     exitCode = int.Parse( args[1] );

                Console.WriteLine( "it exits with code: 0x{0:X8}.", exitCode );
                Environment.Exit( exitCode );
            // If the parse fails, you fall out of the program.
            { }
        Console.WriteLine( "it exits by falling through." );

If this program is invoked with [EnvExit -2147480000] from the command prompt,
it exits with code: 0x80000E40.

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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