b762erv5_us_air_fsx.zip > b762erv5_us_air_fsx\SSP762ERV5_US_Air_FSX\sound\README.txt
 
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to install just put this folder in the (b747_400) folder then open the cfg with notepad and where it says 


sound=
put in (sound.CF6) to make it say:



sound=CF6
then Fly!