C# WMI查询-使用在所有操作系统中都不可用的属性

Property Win32\u OperatingSystem\o体系结构在Windows 7上可用，但在Windows XP上不可用。我使用WMI代码生成器对此进行了检查。我应该如何更改下面的代码才能在Win XP和Win 7两种操作系统上工作

ObjectQuery objectQuery = new ObjectQuery("SELECT OSArchitecture FROM Win32_OperatingSystem");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(objectQuery);
if (searcher.Get().Count == 0) // this line throw exception on Windows XP
    return null;

我知道我可以捕获异常，但我正在寻找更好的解决方案

这对我来说很有效：

string strOSArchitecture = "";
ObjectQuery objectQuery = new ObjectQuery("SELECT * FROM Win32_OperatingSystem");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(objectQuery);
ManagementObjectCollection results = searcher.Get();

foreach (ManagementObject result in results)
{
   foreach (PropertyData property in result.Properties)
   {
      else if (property.Name.Equals("OSArchitecture"))
      {
         strOSArchitecture = result["OSArchitecture"].ToString();
      }
   }
}