享受;-)

Function Is64Bit() As Boolean

    Return My.Computer.FileSystem.SpecialDirectories.ProgramFiles.Contains("Program Files (x86)")

End Function

我正在使用以下代码。注意:它是为AnyCPU项目制作的。

    public static bool Is32bitProcess(Process proc) {
        if (!IsThis64bitProcess()) return true; // We're in 32-bit mode, so all are 32-bit.

        foreach (ProcessModule module in proc.Modules) {
            try {
                string fname = Path.GetFileName(module.FileName).ToLowerInvariant();
                if (fname.Contains("wow64")) {
                    return true;
                }
            } catch {
                // What on earth is going on here?
            }
        }
        return false;
    }

    public static bool Is64bitProcess(Process proc) {
        return !Is32bitProcess(proc);
    }

    public static bool IsThis64bitProcess() {
        return (IntPtr.Size == 8);
    }

我需要这样做，但我也需要能够作为一个管理员远程做到这一点，无论是哪种情况下，这似乎很适合我:

    public static bool is64bit(String host)
    {
        using (var reg = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, host))
        using (var key = reg.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\"))
        {
            return key.GetValue("ProgramFilesDir (x86)") !=null;
        }
    }

使用以下两个环境变量(伪代码):

if (PROCESSOR_ARCHITECTURE = x86 &&
    isDefined(PROCESSOR_ARCHITEW6432) &&
    PROCESSOR_ARCHITEW6432 = AMD64) {

    //64 bit OS
}
else
    if (PROCESSOR_ARCHITECTURE = AMD64) {
        //64 bit OS
    }
    else
        if (PROCESSOR_ARCHITECTURE = x86) {
            //32 bit OS
        }

请参阅博客文章HOWTO:检测进程bit。

对不起，是VB的代码。NET，但是很容易移植到c#。 它可以在Win7, x64和.Net Framework 4.8上正常工作:

Dim r As String = ""
Using searcher As ManagementObjectSearcher = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem")
    Dim Information As ManagementObjectCollection = searcher.Get()
    If Information IsNot Nothing Then
        For Each obj As ManagementObject In Information
            r = obj("Caption").ToString() & _
            " - " & _
            obj("OSArchitecture").ToString() ' <--- !!! "64-bit" shown here
        Next
    End If
    MessageBox.Show(r)
End Using

下面是Windows管理规范(WMI)方法:

string _osVersion = "";
string _osServicePack = "";
string _osArchitecture = "";

ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_OperatingSystem");
ManagementObjectCollection collection = searcher.Get();

foreach (ManagementObject mbo in collection)
{
    _osVersion = mbo.GetPropertyValue("Caption").ToString();
    _osServicePack = string.Format("{0}.{1}", mbo.GetPropertyValue("ServicePackMajorVersion").ToString(), mbo.GetPropertyValue("ServicePackMinorVersion").ToString());

    try
    {
        _osArchitecture = mbo.GetPropertyValue("OSArchitecture").ToString();
    }
    catch
    {
        // OSArchitecture only supported on Windows 7/Windows Server 2008
    }
}

Console.WriteLine("osVersion     : " + _osVersion);
Console.WriteLine("osServicePack : " + _osServicePack);
Console.WriteLine("osArchitecture: " + _osArchitecture);

/////////////////////////////////////////
// Test on Windows 7 64-bit
//
// osVersion     : Microsoft Windows 7 Professional
// osservicePack : 1.0
// osArchitecture: 64-bit

/////////////////////////////////////////
// Test on Windows Server 2008 64-bit
//    --The extra r's come from the registered trademark
//
// osVersion     : Microsoftr Windows Serverr 2008 Standard
// osServicePack : 1.0
// osArchitecture: 64-bit

/////////////////////////////////////////
// Test on Windows Server 2003 32-bit
//    --OSArchitecture property not supported on W2K3
//
// osVersion     : Microsoft(R) Windows(R) Server 2003, Standard Edition
// osServicePack : 2.0
// osArchitecture: