How to detect Windows 64-bit platform with .NET?

Question

In a .NET 2.0 C# application I use the following code to detect the operating system platform:

string os_platform = System.Environment.OSVersion.Platform.ToS         


        

Answer 1

I use a version of the following:

    public static bool Is64BitSystem()
    {
        if (Directory.Exists(Environment.GetEnvironmentVariable("Program Files (x86)"))) return true;
        else return false;
    }