RESOLUTION
To resolve this issue, manually copy the situation files and wave audio files into the appropriate Flight Simulator 2000 folder.
Copy all of the situation files that are associated with the adventure that you want to convert into the ADV folder for Flight Simulator 2000.
The default location of the ADV folder for Flight Simulator 2000 is
drive:\Program Files\Microsoft Games\FS2000\ADV
where
drive is the drive letter of the hard disk on which Flight Simulator 2000 is installed.
Copy all of the wave audio files that are associated with the adventure that you want to convert into the WAV folder for Flight Simulator 2000.
The default location of the WAV folder for Flight Simulator 2000 is
drive:\Program Files\Microsoft Games\FS2000\ADV\WAV
where
drive is the drive letter of the hard disk on which Flight Simulator 2000 is installed.