1- Download SndDrv.dll from here :
[Only registered and activated users can see links. Click Here To Register...]
VirusTotal :
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2- After downloading copy it to your crossfire folder
3- Then copy & replace
4- donot open the game now
5- press properties on snddrv.dll
6- be sure its like this
[Only registered and activated users can see links. Click Here To Register...]
7- FINALLY i can say to you gzz you can play your game normally ^_^