[DllImport("WinMM.dll")]
public static extern bool  PlaySound(string name, int hModule, int flags);

// see mmsystem.h for these flags
public int SND_SYNC      = 0x00000000; // don't return until playback is done
public int SND_ASYNC     = 0x00000001; // play asynchronously
public int SND_NODEFAULT = 0x00000002; // don't play the default sound if n
public int SND_MEMORY    = 0x00000004; // name is actual a pointer to a WAVEHEADER
public int SND_LOOP      = 0x00000008; // loop the sound until next call to PlaySound (use with SND_ASYNC)
public int SND_NOSTOP    = 0x00000010; // don't stop any currently playing sound
public int SND_FILENAME  = 0x00020000; // name is a filename (it's a sound name otherwise)
public int SND_NOSTOP    = 0x00000010; // don't stop any currently playing sound