我在C＃中使用WMI来获取所有已安装的软件，但它并不显示所有软件只有微软的那些

Question

public ManagementScope GetScope() 
    { 
     try 
     { 
      //string classScope="winmgmts:" + "{impersonationLevel=impersonate}!\\" + strComputer + "\\root\\cimv2"; 
      string serverString = @"root\cimv2"; 

      ManagementScope scope = new ManagementScope(serverString); 


       ConnectionOptions options = new ConnectionOptions 
       { 
        Impersonation = ImpersonationLevel.Impersonate, 
        Authentication = AuthenticationLevel.Connect, 
        EnablePrivileges = true 
       }; 
       scope.Options = options; 

      return scope; 
     } 
     catch (Exception ex) 
     { 
      Console.WriteLine(ex.Message); 
      throw; 
     } 
    } 

    public void InvokeMethodsFunctions1() 
    { 
     ManagementScope mScope = GetScope(); 

     mScope.Connect(); 

     if (mScope.IsConnected) 
     { 
      ManagementClass processClass = 
       new ManagementClass(mScope.Path); 
      ManagementObjectSearcher mos = new ManagementObjectSearcher(mScope, new ObjectQuery("SELECT * FROM Win32_Product")); 
      //get collection of WMI objects 
      ManagementObjectCollection queryCollection = mos.Get(); 

      using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"Result.txt")) 
      { 
       textBox1.Text = ""; 
       //enumerate the collection. 
       foreach (ManagementObject m in queryCollection) 
       { 
        // access properties of the WMI object 
        string line = " " + m["Name"] + " , InstallDate : " + m["InstallDate"] + " LocalPackage : " + m["LocalPackage"]; 
        Console.WriteLine(line); 
        file.WriteLine(line); 
        textBox1.Text += line + "\n"; 
       } 
      } 

     } 

    } 

那么我的代码有什么问题？

Answer 1

我只是测试你的代码的下面，简化的版本，我看到安装在个人电脑上的一切，甚至是服务，我写了并安装自己：

var products = new ManagementObjectSearcher(new ObjectQuery("SELECT * FROM Win32_Product")); 
var result = products.Get(); 

foreach (var product in result) 
{ 
    Console.WriteLine(product.GetPropertyValue("Name").ToString()); 
} 

Console.ReadLine(); 

它看起来像你被范围缩小您的查询，这可能是你没有看到所有东西的原因，试试看看你是否有更多的运气。

Answer 2

没有什么不对，Win32_Product WMI类只列出Windows安装（MSI）安装的产品。