We have a big download website like download.cnet.com.
When user click the download button, php script will compile our downloader program and user will download this file.
In this file, there will be program's information on the first screen and user will press next button, Next screen, program will ask to install our toolbar or etc. to user (If user has already had toolbar, it will not ask), and the last screen the program will install real program from download adress. When installing finished, setup of real program will open and at the same time our program will say "you downloaded this file" and finish button will appear. when user press this finish button, program will close. That was desktop side.
In the server (PHP) side;
there will be a [url removed, login to view] and we should give some parameters like icon image, download link, advertisment informatin etc. to that file.
There is a example. If you enter [url removed, login to view], you can look at, we want similar program like softonic.
If you pm us, we will explain more information.