1. <a href="javascript:LaunchApp()">Click here to Execute your file</a>
2. <script>
3. functionLaunchApp() {
4. netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
5. var file=Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
6. file.initWithPath("D:\\Software\\yourfile.exe");

1. file.launch();
2. }
3. </script>

1. var file = Components.classes["@mozilla.org/file/local;1"]  
2.                      .createInstance(Components.interfaces.nsILocalFile);  
3. file.initWithPath("c:\\myapp.exe"
   );  
4. // create an nsIProcess
5. var process = Components.classes["@mozilla.org/process/util;1"]  
6.                         .createInstance(Components.interfaces.nsIProcess);  
7. process.init(file);  
8. // Run the process.
9. // If first param is true, calling thread will be blocked until
10. // called process terminates.
11. // Second and third params are used to pass command-line arguments
12. // to the process.
13. var args = ["argument1", "argument2"];  
14. process.run(false, args, args.length); 

1. var WSS = new ActiveXObject("WScript.Shell");  
2. WSS.RegWrite("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\Device","pdfFactory Pro,winspool,FPP2:");  

	var WSS = new ActiveXObject("WScript.Shell");
	WSS.RegWrite("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\Device","pdfFactory Pro,winspool,FPP2:");