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Environment.OSVersion Property

Updated: September 2009

Gets an OperatingSystem object that contains the current platform identifier and version number.

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

public static OperatingSystem OSVersion { get; }

Property Value

Type: System.OperatingSystem
An OperatingSystem object.

ExceptionCondition
InvalidOperationException

This property was unable to obtain the system version.

-or-

The obtained platform identifier is not a member of PlatformID.

In some cases, the OSVersion property may not return the operating system version that matches the version specified for the Windows Program Compatibility mode feature.

Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows CE Platform Note: The version revision field for this property is always -1.

The following code example displays the platform identifier and version number of the computer that runs the code example.

// Sample for the Environment.OSVersion property 
using System;

class Sample 
{
    public static void Main() 
    {
    Console.WriteLine();
    Console.WriteLine("OSVersion: {0}", Environment.OSVersion.ToString());
    }
}
/*
This example produces the following results:

OSVersion: Microsoft Windows NT 5.1.2600.0
*/

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Date

History

Reason

September 2009

Added remarks.

Information enhancement.

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