Environment.Is64BitOperatingSystem Alternative for Older .NET Versions

If you are using a version of .NET older than .NET 4, you can use the following logic to check if the current environment is x64 or x86 (this method works almost the same way the .NET framework getter for the Is64BitOperatingSystem flag works; if you don’t believe me, you can use dotPeek to find out for yourself):

public static class EnvironmentHelper
    static extern IntPtr GetCurrentProcess();

    static extern IntPtr GetModuleHandle(string moduleName);

    static extern IntPtr GetProcAddress(IntPtr hModule, string procName);

    static extern bool IsWow64Process(IntPtr hProcess, out bool wow64Process);

    public static bool Is64BitOperatingSystem()
        // Check if this process is natively an x64 process. If it is, it will only run on x64 environments, thus, the environment must be x64.
        if (IntPtr.Size == 8)
            return true;
        // Check if this process is an x86 process running on an x64 environment.
        IntPtr moduleHandle = GetModuleHandle("kernel32");
        if (moduleHandle != IntPtr.Zero)
            IntPtr processAddress = GetProcAddress(moduleHandle, "IsWow64Process");
            if (processAddress != IntPtr.Zero)
                bool result;
                if (IsWow64Process(GetCurrentProcess(), out result))
                    return result;
        // The environment must be an x86 environment.
        return false;

Example usage:



"To avoid criticism, say nothing, do nothing, be nothing." - Aristotle

"It is wise to direct your anger towards problems - not people; to focus your energies on answers - not excuses." - William Arthur Ward

"Science does not know its debt to imagination." - Ralph Waldo Emerson

"Money was never a big motivation for me, except as a way to keep score. The real excitement is playing the game." - Donald Trump

"All our dreams can come true, if we have the courage to pursue them." - Walt Disney

"Mitch flashes back to a basketball game held in the Brandeis University gymnasium in 1979. The team is doing well and chants, 'We're number one!' Morrie stands and shouts, 'What's wrong with being number two?' The students fall silent." - Tuesdays with Morrie

I'm not entirely sure what makes me successful in general programming or development, but to any newcomers to this blood-sport, my best guess would be that success in programming comes from some strange combination of interest, persistence, patience, instincts (for example, someone might tell you that something can't be done, or that it can't be done a certain way, but you just know that can't be true, or you look at a piece of code and know something doesn't seem right with it at first glance, but you can't quite put your finger on it until you think it through some more), fearlessness of tinkering, and an ability to take advice because you should be humble. Its okay to be wrong or to have a bad approach, realize it, and try to find a better one, and even better to be wrong and find a better approach to solve something than to have had a bad approach to begin with. I hope that whatever fragments of information I sprinkle across here help those who hit the same roadblocks.

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