launching desktop application using Spring MVC

Hi,
I am currently migrating a Swing application to spring mvc . Old application invokes a .bat file on the desktop of the user ,
Can anyone please suggest how can the same be achieved in web app . I am looking for any simpler way of doing this
instead of a signed applet .

Thanks and Regards,
Chiku

That kind of depends on what the batch file does, no?

The desktop application is a old swing application which than manages its own authentication and authorisation .

It still kinda depends on what the batch file actually *does*.

It is like a microsoft excel application which can be used for some calculations .

Does it need to be in a batch file or can you just move the functionality to the app itself?