Creating a file on the client machine

Good afternoon, is it possible to create a widget, which creates a file in a certain folder on the client machine?
In this case I will have a desktop application waiting for this file to perform a process on the client machine!

Thank you

You can ask the user to download a file and instruct them to put it in a specific folder, but you can’t write to the client machine’s disk. That would be a serious security hole and browsers won’t allow it.


I understand, can I make a widget connect to a local webservice? on the client machine?

Thank you