If you hold the Shift key down and right click on the config.lcl file, you should get an 'Open With' context menu, which will allow you to select a program to open the file with (uncheck the option to 'always use this program' if you do not want / need to set a permanent file association).
You could open Notepad first, click on the open toolbar icon / menu entry, and browse to the config file (you may need to switch from showing text files to all files in the open dialog window).
If you have a shortcut to notepad on your desktop (which I find handy), you can drag and drop a file on it to open. Alternately, if you place a shortcut to Notepad in your 'Send to' folder, you can right click on any file and use that to open it in Notepad.
Thankyou Raze and Flixerflax for the answeres. I wasn't aware of how to open certain files but i am now.
