private void btnBrowse_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Application|*.exe|All Files|*.*";
openFileDialog.DefaultExt = ".exe";
if (openFileDialog.ShowDialog() == true)
{
txtApp.Text = openFileDialog.FileName;
myClient.ChangeBot(openFileDialog.FileName);
}
}