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This is the Free Countdown Timer and Stopwatch Timer project ("countdowntimer")
This project was registered on SourceForge.net on Apr 17, 2010, and is described by the project team as follows:
A high resolution Countdown Timer and Stop Watch written in C# .NET that pop up a message box with user defined message and play user specified sound when time is up. It use a QueueTimer (via PInvoke) for high resolution timing and System.Timers.Timer for normal resolution. It also allow users to save, load and remove current state to/from a XML file.
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