vshost32.exe crash when calling unmanaged DLL

Question

I\'m using a VS 2005 app to interface against an unmanaged (Fortran) DLL. When I run the compiled executable straight from the command line, everything is fine - the DLL can

Answer 1

Might be that there is an unhandled exception. You could try to add the following code to handle all uncatched exceptions:

static void Main()
{
  // Add a handler for the UnhandledExceptionEvent
  AppDomain.CurrentDomain.UnhandledException +=
    new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);

  Application.EnableVisualStyles();
  Application.SetCompatibleTextRenderingDefault(false);
  Application.Run(new Form1());
}

static void CurrentDomain_UnhandledException
     (object sender, UnhandledExceptionEventArgs e)
{
    try
    {
        Exception ex = (Exception)e.ExceptionObject;

        MessageBox.Show(ex.ToString(), "Error", 
              MessageBoxButtons.OK, MessageBoxIcon.Stop);
    }
    finally
    {
        Application.Exit();  
    }
}

The reason for the underlying problem is that you might have a different working folder when debugging so that your native library is not found.