How to handle win32 exception

The first thing you need to do is find out what is causing the exception - we can't because we can't see your screen, access your HDD, or read your mind! :laugh:
At the beginning of your click event, add a try block, and it's catch at the end:

private void button1_Click(object sender, EventArgs e)
    {
    try
        {
        ... All your code goes here
        }
    catch (Exception ex)
        {
        MessageBox.Show(ex.ToString());
        }
    }

With any luck, the error and trace will point you at the offending code.
If it doesn't then we need the error details, and the code that generated it.

Hi,

this is a solution for the a win 32 unhandled exception with msdev.exe, maybe your problem is similar.

http://support.microsoft.com/kb/811191[^]

What does your application do (should do...) on click event?
onrsd.exe belongs to oracle, do you have Android Java JDK installed?

Regards