1. LOW VOLUME
Most of our products have hundreds of system sounds (clicks, warnings, callouts, etc).

All of the sounds listed in ...sim root\Captain_Sim\product name\sound.ini
The idea of the sound.ini is to give an user a tool to replace and/or adjust the volume of any sound in the cockpit as HE likes.

1. For volume adjustment use:
Volume=X.XX (put anything from 0.00 to 1.00)

2. If you don't like some particular sound you can replace it in ...sim root\Captain_Sim\product name\sound\ folder.
Make sure:
- the replacement wav files are in proper sim format.
- the wavs' names match original sound.ini names.

You can not add new entries to the sound.ini.

2. NO SYSTEM SOUNDS AT ALL
caused by your AV which blocking our installer from writing into the DLL.XML file. This may help: https://www.captainsim.org/forum/csf.pl?num=1554738484

If it doesnt,
- Add an AV exclusion or turn it off
- Download https://www.captainsim.com/tools/dll-xml-cs-sound-fix.exe
- Run the exe.

If still no joy,
Open %APPDATA%\Lockheed Martin\Prepar3D v4\dll.xml

And MANUALLY add the following:
<Launch.Addon>
    <Name>Captain Sim Sound</Name>
    <Disabled>False</Disabled>
    <ManualLoad>False</ManualLoad>
    <Path>Captain_Sim\bin\cs.sound.dll</Path>
</Launch.Addon>