How to get full path of libaries/Pictures in Win7?

string SpecialDir(string name = "MyPictures")
       {
           Dictionary<string, string> specDir = new Dictionary<string, string>();
           foreach (System.Environment.SpecialFolder sFolder in Enum.GetValues(typeof(System.Environment.SpecialFolder)))
           {
               try
               {
                   specDir.Add(sFolder.ToString(), System.Environment.GetFolderPath(sFolder));
               }
               catch
               {
                   // Try-Catch to ignore Duplication
               }
           }
           return specDir[name];
       }