Game Programming :: Playing Wave Files In An Application

I have a program that speaks wave files. This works problemless with the Soundplayer class with the following code:

Sub MyPlayWav(ByVal WavFileName As String, ByVal StartPos As Long, ByVal EndPos As Long)
Dim wp as new SoundPlayer
wp.SoundLocation = WavFileName
wp.Play
End sub

The soundplayer does however not seem to have a method to play the wave from position StartPos to position EndPos and achieving just that would mean quite a reduction in downloads of these files.

The soundplayer does have a stream object, and that does have a seek method, suggesting that there might be a way to accomplish this, but how?

I plan to include other media files as I am developping the project, and I guess I will be confronted with the same problem.