how to get Operating System Details in C# code

Question

i need to get OsArchitecture means Bits of O/s , i used Win32_OperatingSystem but its "OsArchitecture "is not work for all type Operating System

ManagementObjectSearcher objOSDetails = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem");
           ManagementObjectCollection osDetailsCollection = objOSDetails.Get();
 foreach( ManagementObject mo in osDetailsCollection )
  {
    String  _operatingSysBits = mo["OSArchitecture"].ToString();

  }

possible duplicate of [How to detect Windows 64 bit platform with .net?](http://stackoverflow.com/questions/336633/how-to-detect-windows-64-bit-platform-with-net) — Powerlord, Aug 25 '10 at 17:46

Bob · Accepted Answer · 2010-08-25T18:10:51.567

1

Check IntPtr.Size. It will be 4 on a 32-bit platform, and 8 on a 64-bit platform (unless your process is running in 32bit mode).

edited Aug 25 '10 at 18:10

answered Aug 25 '10 at 17:46

Bob

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It'll still be 4 on a 64-bit platform running a .NET app compiled for 32-bit. – Powerlord Aug 25 '10 at 17:46
Not if running as a 32 bit process on Windows 64. – driis Aug 25 '10 at 17:47
what is IntPtr.Size and where to get it. – Shantanu Gupta Aug 25 '10 at 17:50
@Shantanu Edited answer with link, and clarification for running in 32bit mode. – Bob Aug 25 '10 at 18:13

score 0 · Answer 2 · answered Aug 25 '10 at 17:48

for .NET 4.0 there is Environment.is64BitOperatingSystem

or

    ManagementObject Mo = new ManagementObject("Win32_Processor.DeviceID='CPU0'");
    object o = Mo["Architecture"];
    UInt16 sp = (UInt16)(o);

    if (sp == 0)
    {
        //86
    } else if (sp == 9)
    {
        //64
    }

    Mo.Dispose();

how to get Operating System Details in C# code

2 Answers2