Virtual dub no audio decompresser could be found

[amberkelly11]

Hello, i am new to virtual dub and when i try to play a movie that i just created using it i get this:
No audio decompressor could be found to decompress the source audio format.. source format tag: 2000. i need help to resolving this problem

 

[amberkelly11]

I am using windows vista 32 bit.