Hi again Marc, the truth is I do not understand it, Windows XP does not happen in this error. In the 7-64 bits of Windows when I select a different plane, the silence is total, in and out of the plane.
but with the 757, the engine noise is heard from outside the plane.

I changed this line:
SoundOffWhenSimIsSlew = 1 of this: SoundOffWhenSimIsSlew = 0
and also:
SoundOffWhenSimIsPaused = 1 to
SoundOffWhenSimIsPaused = 0I have also copied msvcr71.dll

Thank you

Frangollo :)