Dear Hiring Manager,
I'm very interested in your job post involving these skills.
I have recently designed and audio player in c++. I have some experiences of audio file and designing desktop software in c++. It can run on win Xp, Vista and Win 7.
I believe my skills would be ideal for your project.
I am available to chat by IM, email or Skype, and would be happy to set up a convenient time to discuss the application.
Regards,
donhuan