---- gpedit-msc-c# ---

private static void Main(string[] args)
{
	RegistryKey registryKey = Registry.LocalMachine.OpenSubKey("Software\\Microsoft\\Windows NT\\CurrentVersion");
	registryKey.GetValue("EditionID");
	if (registryKey.Equals("BusinessBasic") || registryKey.Equals("BusinessPremium") || registryKey.Equals("Ultimate"))
	{
		MessageBox.Show("Your version of Windows Vista already has gpedit.msc.");
		Environment.Exit(0);
	}
	if (Directory.Exists("C:\\Program Files (x86)"))
	{
		ProcessStartInfo processStartInfo = new ProcessStartInfo();
		processStartInfo.FileName = "x64.bat";
		Process process = new Process();
		process.StartInfo = processStartInfo;
		process.Start();
	}
	else if (!Directory.Exists("C:\\Program Files (x86)"))
	{
		ProcessStartInfo processStartInfo = new ProcessStartInfo();
		processStartInfo.FileName = "x86.bat";
		Process process = new Process();
		process.StartInfo = processStartInfo;
		process.Start();
	}
}