run specfic client windows application via webpage

I am trying to find a way to run a client ( windows ) application via a webpage.

Please let me explain why... i have a touch screen information kiosk at a community center which runs a word-press webpage. This is the only place the webpage is run and its loaded via a locked down windows client. I want to add accessibility / disability features to make it usable by everyone. Two main features i would like are an on screen virtual trackpad ( the screen is portrait and wheel chair uses can not reach the top so a virtual trackpad at the bottom would help ) and also a screen magnifier. The magnifier is already built into windows via the Ease of Access Centre option within windows and the virtual trackpad can be added using this software, http://ift.tt/1bHOAq0 I would like to create a set of large icons at the very bottom of the screen that when tapped they run the client windows command to open the application. Reading various posts i understand this is a security issue but as i manage the client computer i wondered if there is a way around it. The browser i use is Chrome and the kiosk is locked down via www.sitekiosk.com.

I use WordPress as i am by no means a developer, can anyone tell me a way to accomplish this, would be great to have the features so everyone can use the kiosk. If code could be posted so i just have to change the path and executable that would be extremity helpful.

Thanks in advance.