Custom Countdown Timer

I need a WPF in Visual Basic 2010 to do the following: 1) When executed creates: a) Directory If it does not exist b) A Log file in directory if it does not exist c) Writes to log a custom message with date time stamp HH:MM:SS d) Keeps appending to log every time the program is executed 2) When executed plays back an Audio File 3) When executed it starts a 30 seconds Count down timer, it stops when it reaches Zero. 4) The Countdown timer should be similar but not the same as : [login to view URL] 5) The word “Attention” should be flashing on the Form 6) Target Machine: Windows XP