call installed programs in vaadin application

hi there,

are there any ways to call installed programs in vaadin application?
“installed program” means which are located in %\Program files% in Microsoft windows.

my customer wants to call messenger program like skype or windows messenger in the application.


No, this would be a very big security risk to run applications on the client. On the server however, it is possible

You can use java applet.

Not exactly this, but Skype does by default install extensions for handling its own URLs so you can trigger a Skype call from a link on a page. Search the web for information on Skype callto links. Maybe Messenger does something similar, I haven’t checked it.

For more extensive interaction with external applications, you would probably need native browser plug-ins.