Determine WAV and MIDI Capabilities ----------------------------------- Using MCI functions available in AxWMME.UCD/U32 you can easily detect if the user's system is capable of playing WAV or MIDI files. -- Can machine play WAV? ReturnValue := MCISendString("capability waveaudio can play") ReturnValue := MCIGetReturnString() -- Can machine play MIDI? ReturnValue := MCISendString("capability sequencer can play") ReturnValue := MCIGetReturnString() If the ReturnValue of the MCIGetReturnString() function call is "true", then the machine is capable of playing the respective type of sound file.