I believe many friends have already started using Microsoft's latest operating system: Windows Vista. So, you definitely don't want to miss the "Windows Calendar" component within it. You can find it under "All Programs" in the Start Menu. Simply put, the functions of Windows Calendar are very similar to the calendar functions in Office Outlook, but due to its seamless integration with the operating system, it is more convenient to use. If you only use Windows Calendar as a tool for scheduling appointments, then that would indeed be a waste. Here, we introduce three tips for making good use of Windows Calendar.