I need to create a website where Subject Experts can register - from there they can be contacted by clients for advice on their respective fields. The Subject Experts need to have a desktop application (which they will be required to download) that can log them in automatically. While the website has been developed in php, I am finding it difficult to get the desktop application made which can achieve this requirement. Can anyone suggest how this integration of the desktop application with php be achieved. Any help is appreciated.
looks like there are many in the web but they're not free of course (e.g http://livehelp.stardevelop.com/)
You can use Titanium Desktop to create desktop applications using HTML/CSS/PHP/Python/Ruby. It creates binaries for Windows, Mac and Linux.