Re: PlaySound Link error

This program is suppose to play a sound when a button is pressesd:

The following error has accured during my build:

------ Build started: Project: PlaySoundWave, Configuration: Debug
Win32 ------
Linking...
PlaySoundWave.obj : error LNK2028: unresolved token (0A00000E) "extern
"C" int __stdcall sndPlaySoundW(wchar_t const *,unsigned int)"
(?sndPlaySoundW@@$$J18YGHPB_WI@Z) referenced in function "private: void
__clrcall PlaySoundWave::Form1::button1_Click(class System::Object
^,class System::EventArgs ^)"

PlaySoundWave.obj : error LNK2019: unresolved external symbol "extern
"C" int __stdcall sndPlaySoundW(wchar_t const *,unsigned int)"
(?sndPlaySoundW@@$$J18YGHPB_WI@Z) referenced in function "private: void
__clrcall PlaySoundWave::Form1::button1_Click(class System::Object
^,class System::EventArgs ^)"

C:\Documents and Settings\Administrator\My Documents\Visual Studio
2005\Projects\PlaySoundWave\Debug\PlaySoundWave.exe : fatal error
LNK1120: 2 unresolved externals
Build log was saved at "file://c:\Documents and
Settings\Administrator\My Documents\Visual Studio
2005\Projects\PlaySoundWave\PlaySoundWave\Debug\BuildLog.htm"
PlaySoundWave - 3 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped
==========

Here is the code for the class:

#pragma once
#include <windows.h> // for PlaySound()
#include <Mmsystem.h>

namespace PlaySoundWave {

using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;

/// <summary>
/// Summary for Form1
///
/// WARNING: If you change the name of this class, you will need to
change the
/// 'Resource File Name' property for the managed resource
compiler tool
/// associated with all .resx files this class depends on.
Otherwise,
/// the designers will not be able to interact properly with
localized
/// resources associated with this form.
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}

protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Button^ button1;
protected:

private:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
this->button1 = (gcnew System::Windows::Forms::Button());
this->SuspendLayout();
//
// button1
//
this->button1->Location = System::Drawing::Point(210, 175);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(75, 23);
this->button1->TabIndex = 0;
this->button1->Text = L"button1";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this,
&Form1::button1_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(292, 266);
this->Controls->Add(this->button1);
this->Name = L"Form1";
this->Text = L"Form1";
this->ResumeLayout(false);

}
#pragma endregion
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e) {
LPCWSTR filename = L"start.wav";

sndPlaySound(filename,SND_LOOP);//NULL,SND_FILENAME|SND_LOOP|SND_ASYNC);

}
};
}

Does anyone know what the problem is? I thought it is a linking
problem. I have included Coredll.lib in the project general linker
additional library directories.

What could it be?

THX