Environment.GetFolderPath

gistfile1.cs

public static string GetFolderPath(Environment.SpecialFolder folder)
{
  if (!Enum.IsDefined(typeof(Environment.SpecialFolder), folder))
	{
		throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), new object[]
		{
			(int)folder
		}));
	}
	StringBuilder stringBuilder = new StringBuilder(260);
	Win32Native.SHGetFolderPath(IntPtr.Zero, (int)folder, IntPtr.Zero, 0, stringBuilder);
	string text = stringBuilder.ToString();
	new FileIOPermission(FileIOPermissionAccess.PathDiscovery, text).Demand();
	return text;
}