Bf Vietnam audio & radio fixes

[Cuchillo_Baishan]

For modern OS like Windows 7, 8 and 10.

The first patch is to get Surround Sound 7.1 working, which is only available when selecting EAX as sound provider in the audio settings:

Install IndirectSound
-Download IndirectSound and extract the files to /path-to-your-game.
-Open dsound.ini and change eax1 = false to eax1 = true.
-Start the game and set the sound provider in the audio settings to "Creative Labs EAX ™", choose your speaker configuration and click "Save" to confirm the changes.

The second patch fixes the issues about some in-game audio parts missing, like radio commands and vehicle music on all Windows OS since Windows Vista. The file below is a compatibility fix to trick the game into assuming you are running an older Windows version like XP/2000:

Install compatibility profile
-Download and install the compatibility profile.
-Remove any compatibility mode setting on the games executable.