Play wav file async multiple times with .net

Question

I have an app that I need to play a wav file when a key is pressed, I use the SoundPlayer class but if another sound is being played when a new key is pressed, it stops the

Answer 1

Use PlaySound from the windows API in combination with the SND_ASYNC and SND_NOSTOP flags.

http://www.pinvoke.net/default.aspx/winmm.playsound

Usage

//And the actual usage
PlaySound (fileName, UIntPtr.Zero, (uint)(SoundFlags.SND_FILENAME | SoundFlags.SND_ASYNC | SoundFlags.SND_NOSTOP));

Declarations

[Flags]
public enum SoundFlags
{
    /// 
play synchronously (default)
    SND_SYNC = 0x0000,    
    /// 
play asynchronously
    SND_ASYNC = 0x0001,
    /// 
silence (!default) if sound not found
    SND_NODEFAULT = 0x0002,
    /// 
pszSound points to a memory file
    SND_MEMORY = 0x0004,
    /// 
loop the sound until next sndPlaySound
    SND_LOOP = 0x0008,    
    /// 
don't stop any currently playing sound
    SND_NOSTOP = 0x0010,
    /// 
Stop Playing Wave
    SND_PURGE = 0x40,
    /// 
don't wait if the driver is busy
    SND_NOWAIT = 0x00002000,
    /// 
name is a registry alias
    SND_ALIAS = 0x00010000,
    /// 
alias is a predefined id
    SND_ALIAS_ID = 0x00110000,
    /// 
name is file name
    SND_FILENAME = 0x00020000,
    /// 
name is resource name or atom
    SND_RESOURCE = 0x00040004
}

[DllImport("winmm.dll", SetLastError=true)]
static extern bool PlaySound(string pszSound, UIntPtr hmod, uint fdwSound);

Update

Apologies, you are correct. The API cannot be used to play sounds simultaneously. You should be using the waveOut api. Look at this article: http://www.codeproject.com/KB/audio-video/cswavrec.aspx