public MP3FileUrlFetch() { primary_fetch = new youtube_org(); secondary_fetch = new simplemp3_net(); tertiary_fetch = new video2mp3_at(); primary_fetch.Completed += new ApiCompletedEventHandler(primary_fetch_Completed); primary_fetch.Failed += new ApiCompletedEventHandler(primary_fetch_Failed); secondary_fetch.Completed += new ApiCompletedEventHandler(secondary_fetch_Completed); secondary_fetch.Failed += new ApiCompletedEventHandler(secondary_fetch_Failed); tertiary_fetch.Completed += new ApiCompletedEventHandler(tertiary_fetch_Completed); tertiary_fetch.Failed += new ApiCompletedEventHandler(tertiary_fetch_Failed); }