Can't update Dx9

Everytime I try to update, it freezes on a file called dsound.dll and the entire setup ends and it tells me a file didn’t copy so the setup was aborted…
SETUP:
AMD 1800
Nvidia GF3 TI500
Win XP PRO
Soundblaster Live
PLS help!!!

It seems to me that your dsound is kinda crapy or your performing an illegal or not very right operation somewhere in the code.Mind if we see some source?

P.S.
I bet you’ve noticed this is a site dedicated to the OpenGL API not to the M$ junks…