Q:

Prompt user to save file to a specific location

I'm creating a website that generates a text file.  I would like for the user to save the file to a specific folder (it's a backup file for a video game).  
Is it possible to change the default folder the file is saved to via PHP or HTML?  C#, while not my first pick, would also be acceptable.

A:

If I understand correctly, NO you cannot default to a location on the users computer.  This is just a security piece that you cannot get around.
Try educating the user before they download. That's the best way.

