calling exe on client

Hi All
I am trying to call an exe resides in my mobile client and wants to execute that exe file using javasctipt
i used the following code. but its not doing anything could anyone please tell me or other ideas.

funtion doScript()
{
var ws = new ActiveXObject(“WScritp.Shell”);
ws.run(“file://my.exe”);
}

Could any one please suggest other ideas.

thanks in advance,
Aruna