Then try audiohack. Download the file, drop it and your bad wave file into a root directory like c:\ (just to make life easy since it's command line). Name the wave something nice and short like 'bad.wav', again, just to make life easy.
Go to a command prompt (DOS), head to c:\ or whatever directory you chose, type audiohack and follow the prompt. Enter bad.wav and then call the new one good.wav