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Environment.Is64BitProcess Property

Determines whether the current process is a 64-bit process.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public static bool Is64BitProcess { get; }

Property Value

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

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

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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