Hi, I watched the video and read the description of your request. I understand that you need a desktop app (that works with windows 10) to get the list of members on your fan page and send messages to them.
I can provide you with a user friendly and effective app based on your description.
I can also show you some samples if needed.
Proposed Milestones
$200 USD - Project Milestone
Do you have full access to the fan page? I mean are you the owner of the fan page?
The reason I asked the question is that, the project will need facebook graph api which will require you to be the owner of the fan page.