우선 아래의 네임스페이스를 추가한다.
using System.Reflection;
using System.IO;

아래와 같이 해 주면 프로그램이 시작되는 폴더를 받아올수 있습니다.
string fullAppName = Assembly.GetExecutingAssembly().GetName().CodeBase;
string fullAppPath = Path.GetDirectoryName(fullAppName);

즉 현재 실행중인 프로그램의 전체 경로를 구하고
그 값에서 폴더정보를 얻는다.

using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Threading;
using System.IO;
public class Sound{
   private byte[] m_soundBytes;
   private string m_fileName;
   private enum Flags {
       SND_SYNC = 0x0000, /* play synchronously (default) */
       SND_ASYNC = 0x0001, /* play asynchronously */
       SND_NODEFAULT = 0x0002, /* silence (!default) if sound not found */
       SND_MEMORY = 0x0004, /* pszSound points to a memory file */
       SND_LOOP = 0x0008, /* loop the sound until next sndPlaySound */
       SND_NOSTOP = 0x0010, /* don't stop any currently playing sound */
       SND_NOWAIT = 0x00002000, /* don't wait if the driver is busy */
       SND_ALIAS = 0x00010000, /* name is a registry alias */
       SND_ALIAS_ID = 0x00110000, /* alias is a predefined ID */
       SND_FILENAME = 0x00020000, /* name is file name */
       SND_RESOURCE = 0x00040004 /* name is resource name or atom */
   }
   [DllImport("CoreDll.DLL", EntryPoint="PlaySound", SetLastError=true)]
   private extern static int WCE_PlaySound(string szSound, IntPtr hMod, int flags);

   [DllImport("CoreDll.DLL", EntryPoint="PlaySound", SetLastError=true)]
   private extern static int WCE_PlaySoundBytes (byte[] szSound, IntPtr hMod, int flags);

   public Sound (string fileName) { m_fileName = fileName; }

   public Sound(Stream stream) {
       // read the data from the stream
       m_soundBytes = new byte [stream.Length];
       stream.Read(m_soundBytes, 0,(int)stream.Length);
   }

   public void Play () {
       // if a file name has been registered, call WCE_PlaySound,
       // otherwise call WCE_PlaySoundBytes
       if (m_fileName != null)
           WCE_PlaySound(m_fileName, IntPtr.Zero,
                                (int) (Flags.SND_ASYNC | Flags.SND_FILENAME));
       else
           WCE_PlaySoundBytes (m_soundBytes, IntPtr.Zero,
                                         (int) (Flags.SND_ASYNC | Flags.SND_MEMORY));
   }
}

위와 같은 클래스로 사용할 수 있습니다.

사용 방법은 예를 들어.. 

private void btnEmbedded_Click(object sender, System.EventArgs e) {
    Sound sound =
         new Sound(Assembly.GetExecutingAssembly).GetManifestResourceStream("SoundSample.chimes.wav"));    
    sound.Play();
}

private void btnFile_Click(object sender, System.EventArgs e) {
    Sound sound = new Sound ("Program Files\\SoundSample\\chord.wav");
    sound.Play();
}

위와 같은 방법으로 사용할 수 있습니다.

원문 : http://www.devpia.com/Forum/BoardView.aspx?no=153&ref=153&forumname=MOBILE_LEC&stype=MBL&KeyW=%b4%e5%b3%dd&KeyR=title (새 창으로 열기)