There may be instances where you wanted to open a video file while playing a mp3 file. By default Winamp allows only single instance of the player and hence the mp3 files will be replaced with the video file. This means that you need to play video file using other software like Windows media player.However Winamp allows you can easily configure Winamp 5.X to allow multiple instances, allowing you to play a video and audio file simultaneously.
'The configuration settings are very simple. Right click on the Winamp's title bar an select Options-> Preferences. This will bring up the preferences Window. In this select the General Preferences tab. In the right pane select the box "Allow multiple instances". Now close the dialog box and you can run a video and audio file simultaneously.
NB: Note that this feature is available only in Winamp 5.X versions.