To use these unzip to a folder. You will need to disable your sound device and reboot. Then copy the unzipped files to windows/system. Make sure your files are set as "View All". A "Readme.txt" is included in the zip file. Enable your device then reboot. To check that this has worked reboot again and you should no longer get an msgsrv32 error message on shutdown.
ps. Pay no attention to DG he is an idiot ))