create an install using vs2010 for c# applications

void OnFirstRun()
{
   // get directory of datafiles downloaded with the App, this is 
   // an unusual and very long ClickOnce path.
   String StartupPath = System.Windows.Forms.Application.StartupPath;
   String OrigMktDataPath = Path.Combine(StartupPath, "MktData");

   // get destination path
   String localAppData = Environment.GetFolderPath   
                         (Environment.SpecialFolder.LocalApplicationData);

   String DestPath = Path.Combine(localAppData, @"YourCompanyName\YourAppName\");
   DirectoryInfo diSource = new DirectoryInfo(OrigMktDataPath);
   DirectoryInfo diDest = new DirectoryInfo(DestPath);
   try
   {
    if (diSource.Exists)
    {

     if (!diDest.Exists)
     {
      Directory.CreateDirectory(destPath);
     }
     bool OverWrite = false;
     CopyDir(OrigMktDataPath, DestPath, OverWrite);
    }
   }
   catch (Exception ex)
   {
    regWrap.WriteLogException(ex);
    regWrap.FlushFileStream();
   }
}

private void CopyDir(String PathSrc, String PathDest, bool OverWrite)
{
 DirectoryInfo diSource = new DirectoryInfo(PathSrc);
 FileInfo[] files = diSource.GetFiles();
 String DestFFN;

 foreach (FileInfo fi in files)
 {
  DestFFN = PathDest + fi.Name;

  if (!File.Exists(DestFFN) || OverWrite)
  {
   fi.CopyTo(DestFFN, true);
   File.SetAttributes(DestFFN, FileAttributes.Normal);
  }
 }
}