Hello i have a 767 that is perfectly working now but one issue is that when i load it in cold and dark then start it up manually some sounds dont work like the seatbelt signs no smoking sign the cabin crew callings all the buttons in overhead panel that are blue that add voice, apu doesnt rlly make a sound when it starts only the engine sounds work when they start and the air conditioner sound.

Thanks in advance

Which version are you running? 1.4 or 1.5? The current CS supported one only is 1.5 (latest downloader).
1.4 may need some small tweak in the sound.cfg while 1.5 just relies on the two dlls getting loaded at FSX startup.

how may i know which version i got?

AviationAddict wrote on Apr 2^nd, 2012 at 12:16pm:

how may i know which version i got?

When selecting one of the Captain Sim 767's to fly, highlight a 767, then click on Details. It will tell you which version you are using.

The sound issue is usually associated with v1.4 and not v1.5 (it was fixed).

If it is v1.4, go to [FSX]\Captain_Sim\767, open the sound.ini file with notepad and change this:

[Common]
Refresh.Time=10
Sound.Directory=Captain_Sim\767\sound
SoundOffWhenSimIsSlew=1
SoundOffWhenSimIsPaused=1
SoundOffWhenSimDialogIsOpen=1
SoundOffWhenSimSoundIsOff=1

To this:

[Common]
Refresh.Time=10
Sound.Directory=Captain_Sim\767\sound
SoundOffWhenSimIsSlew=0
SoundOffWhenSimIsPaused=0
SoundOffWhenSimDialogIsOpen=0
SoundOffWhenSimSoundIsOff=0

It's easy to find them as they right at the top of the sound.ini file.

Mark