Running batch file from Selenium ide

I need to run a batch file using Selenium ide. It seems a little hard since there is no Command to support running files outside of Firefox.
I have tried using the open and runScript commands. When I’m using the open command it just opens the file inside Firefox and lists the content of the file. It is not being executed.
I have tried using the following javascript to execute the file with the runScript command:
function myFunction(){
   WshShell = new ActiveXObject("Wscript.Shell"); //Create WScript Object
   WshShell.run("d://temp/testJS.bat"); }
 
I’ sure that this can be done using webdriver, but that is not possible, since it has to be used at my work and the test suite is based on the Selenium ide.