private void upgrade_settings() {
try {
if (Properties.Settings.Default.SettingsUpgrade) {
Properties.Settings.Default.Upgrade();
Properties.Settings.Default.SettingsUpgrade = false;
Properties.Settings.Default.Save();
}
}
catch {
Properties.Settings.Default.SettingsUpgrade = false;
Properties.Settings.Default.Save();
}
}
private void initContactManager() {