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Environment.OSVersion Property

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 object that contains the platform identifier and version number.
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.

The following 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
*/

.NET Framework

Supported in: 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, 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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