C#获取WINDOWS系统信息

需引用System.Management命名空间，

具体代码如下：

 public class SysProp
     {
         public   SysProp()
         {

             ManagementObjectSearcher PhysicalMemory = new    ManagementObjectSearcher("select * from Win32_PhysicalMemory");
             ManagementObjectSearcher Processor = new ManagementObjectSearcher("select * from Win32_Processor");
             ManagementObjectSearcher Os = new ManagementObjectSearcher("select * from Win32_OperatingSystem");
             ManagementObjectSearcher VideoController = new ManagementObjectSearcher("select * from Win32_VideoController");
             ManagementObjectSearcher CompSys = new ManagementObjectSearcher("select * from Win32_ComputerSystem");

             PhysicalMemory_Capacity = String.Format("{0} MB", Convert.ToInt64(GetValue(PhysicalMemory, "Capacity")) /  / );

             ProcessorName = (string)GetValue(Processor, "Name");

             OperatingSystemBit = System.Environment.Is64BitOperatingSystem ? "64位" : "32位";
             Os_Caption = (string)GetValue(Os, "Caption");
             Os_Version = System.Environment.OSVersion.Version.ToString();
             ServicePack = !String.IsNullOrEmpty(System.Environment.OSVersion.ServicePack)
                 ? System.Environment.OSVersion.ServicePack
                 : "无";
             SystemSpecialFolder = System.Environment.GetFolderPath(System.Environment.SpecialFolder.System);
             Video_Caption = (string)GetValue(VideoController, "Caption");
             UserName = System.Environment.UserName;
             UserDomainName = System.Environment.UserDomainName;
             CompSys_Workgroup = (string)GetValue(CompSys, "Workgroup");
         }

         private object GetValue(ManagementObjectSearcher searcher, string propName)
         {
             foreach (ManagementObject mobj in searcher.Get())
                 return mobj[propName];
             throw new NotSupportedException();
         }

         /// <summary>
         /// 物理内存
         /// </summary>
         public string PhysicalMemory_Capacity { get; set; }

         /// <summary>
         /// 处理器
         /// </summary>
         public string ProcessorName { get; set; }

         /// <summary>
         /// 处理器架构
         /// </summary>
         public string OperatingSystemBit { get; set; }

         /// <summary>
         /// window名称
         /// </summary>
         public string Os_Caption { get; set; }

         /// <summary>
         /// window版本
         /// </summary>
         public string Os_Version { get; set; }

         /// <summary>
         ///
         /// </summary>
         public string ServicePack { get; set; }

         /// <summary>
         /// 系统目录
         /// </summary>
         public string SystemSpecialFolder { get; set; }

         /// <summary>
         /// 显卡名称
         /// </summary>
         public string Video_Caption { get; set; }

         /// <summary>
         /// 用户名
         /// </summary>
         public string UserName { get; set; }

         /// <summary>
         /// 计算机名称
         /// </summary>
         public string UserDomainName { get; set; }

         /// <summary>
         /// 工作组
         /// </summary>
         public string CompSys_Workgroup { get; set; }
     }