IE/Netscape PopUp and PopUnder Killer

I want a PopUp/PopUnder Ad Killer (in one) created using the most popular programming languages that can be supported with all versions of Windows (95, 98, ME, 2000,XP)as well as the Mac OS. This software will obviously need to work with the Internet Explorer and Netscape browsers... and would be great if it worked with all previous versions of both. I will give the name of the program to the programmer upon the winning of the project... as the name will need to be implemented into the software. 2 versions will need to be created... 1) Free Version - Can be downloaded for free, but requires an ad to be seen "in real-time" while connected to the Internet... 2) Paid Version - Where user will be able to download after paying with US $'s. Additional Features: Paid Version: For paid version, I'll need a system to create userid's/passwords for users. Free Version: I'll need to be able change ads/banners throughout the program from my home computer... and those who have the free version will need to update everytime their software is opened while connected to the web. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Supported with all versions of Windows (95, 98, ME, 2000,XP)as well as the Mac OS. This software will obviously need to work with the Internet Explorer and Netscape browsers... and would be great if it worked with all previous versions of both. ## Deadline information Program window size must be able to be minimized into the windows/mac tray... And the program should have a feature of on/off... Very similar to that of: [login to view URL]