C#操作IIS創建應用程序池時出現無效索引異常及解決方法

C#操作IIS創建應用程序池出現異常：無效索引（Exception from HRESULT:0x80070585）

相關代碼：

01.public static string CreateAppPool(string appPoolName, string frameworkVersion, string managedPipelineMode)  
02.         {  
03.             DirectoryEntry rootfolder = new DirectoryEntry("IIS://localhost/W3SVC/APPPOOLS");  
04.  
05.             try  
06.             {  
07.                 DirectoryEntry appPool = rootfolder.Children.Add(appPoolName, "IIsApplicationPool");  
08.                 if (appPool.Properties.Contains("AppPoolCommand"))  
09.                 {  
10.                     appPool.Properties["AppPoolCommand"][0] = "1";  
11.                 }  
12.                 if (appPool.Properties.Contains("ManagedRuntimeVersion"))  
13.                 {  
14.                     appPool.Properties["ManagedRuntimeVersion"][0] = "v4.0";  
15.                 }  
16.                 //以下代碼在WindowsServer2008版本為6.0的系統上會出現異常：   
17.                 //無效索引（Exception from HRESULT:0x80070585）   
18.                 //if (appPool.Properties.Contains("AppPoolIdentityType"))   
19.                 //{   
20.                 //    appPool.Properties["AppPoolIdentityType"][0] = "4";   
21.                 //}   
22.                 if (appPool.Properties.Contains("Enable32BitAppOnWin64"))  
23.                 {  
24.                     appPool.Properties["Enable32BitAppOnWin64"][0] = true;  
25.                 }  
26.                 appPool.CommitChanges();  
27.                 return null;  
28.             }  
29.             catch (System.Exception ex)  
30.             {  
31.                 LogToFile.Save(ex, "CreateAppPool");  
32.                 return ex.Message;  
33.             }  
34.         } 

將相關代碼注釋以後，未見對Web應用程序帶來任何影響。

URL：http://www.bianceng.cn/Programming/csharp/201410/45785.htm