# use the module
use Win32::IE::Mechanize;
# open IE browser
$IE = Win32::IE::Mechanize->new( visible => 1 );
# Navigate to specified URL
$IE->get("<application url>" );
# Set value to the fields (correct username and wrong password)
$IE->set_fields(txtUserName => 'anbu', txtPassword => '<wrong password>');
# Click on the button - login
$IE->click('btnSignIn');
# Get the error message "Incorrect password"