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Environment.Is64BitOperatingSystem Property

Determines whether the current operating system is a 64-bit operating system.

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

public static bool Is64BitOperatingSystem { get; }

Property Value

Type: System.Boolean
true if the operating system is 64-bit; otherwise, false.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.

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