Get Count of Unread mail from Outlook Express in C#.Net

Get Count of Unread mail from Outlook Express in C#.Net

 using Microsoft.Office.Interop.Outlook;  
   public static int CountOfUnreadMails()  
     {  
       Application OutlookApp = new Application();  
       NameSpace myMail = OutlookApp.GetNamespace("MAPI");  
       int unread = myMail.GetDefaultFolder(OlDefaultFolders.olFolderInbox).UnReadItemCount;  
      return  unread;  
      }