Programs and paths preferences

Here you can explicitly set the location of folders used by Opera, and configure external programs that Opera uses for various purposes.

Paths

Opera directory This is the location of Opera's files. Don't change this unless you know what you are doing.
Window storage file This is the window storage file, used by Opera on start-up.
Download directory If you choose "Open" when downloading a file, the file is put in this folder, as opposed to "Save", where you specify the folder each time.

Programs

Source viewer Choose your favorite text editor to view the source of Web pages. You can view the source of a Web page from the View menu.
Telnet program Telnet is used to communicate with other computers through a command-line interface. This is relevant for advanced users only.
TN3270 program TN3270 communicates with IBM mainframes. This is relevant for advanced users only (see IETF RFC 1576 for details).
E-mail client Select your e-mail application and set command line parameters (if necessary).
News client Select your news application and set command line parameters (if necessary).