You can use Avio Service for direct playing of audio files.
Click the Avio Service icon and select Settings. Enable Scheduler by clicking the corresponding switch. Finish by clicking Apply Settings.
Click Avio Services icon again and select Configure Audio Files... (enabled).
Below the field Available Audio Files click on Add File and select the required audio file in the file selection dialog.
Once you have added the file you can highlight it in the list Available Audio Files and click Install for the audio file to be installed.
Close the dialog after you have added all the necessary audio files.
Now start Avio Manager. The audio files can now be found as channels in Avio Service of the corresponding PC under Audio. Link up the files with other channels. At a value of 1 the files is played back. See also Wings Avio Manager - An Overview.