OSVersion

Just recently I was involved in a discussion about logging and the need to include the name of the operation system and the service pack level in the application log file.

While you can get to this information in a number of ways, it is important that it will work as expected even for future versions of Windows.

The following code shows a console application that displays the name of the operating system along with the current service pack level.

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Operating System : {0} ({1} bit) ", GetOperationSystemName(), IntPtr.Size == 4 ? "32" : "64");
        Console.WriteLine("Service Pack : {0}", Environment.OSVersion.ServicePack);
    }

    private static string GetOperationSystemName()
    {
        var searcher = new ManagementObjectSearcher("SELECT Caption FROM Win32_OperatingSystem");
        var managementObject = searcher.Get().OfType<ManagementObject>().FirstOrDefault();
        return managementObject != null ? managementObject["Caption"].ToString() : "Unknown OS";
    }
}

Running the console application displays the following:

.\OSVersion.exe

Operating System : Microsoft Windows 7 Enterprise  (64 bit)
Service Pack : Service Pack 1