Not sure this is the right place to post this question. I have a favorite text editor, which I have installed, and it works fine under Win7. The problem is that I want to double click on certain file types, and have this text editor open automatically, the way it does on my XP machine. No matter WHAT I do, trying to tell Windows that the default program for certain file types is this text editor, it does not retain that choice. When I want to Change the Default Program I go to the folder where I installed it, and Windows seems to forget about my choice as soon as I leave that panel. The only way I can get these files to open is by dragging the file on top of the Desktop shortcut, and using Open With. I am frankly astonished that I cannot find any reference to setting up an application as a Default that is already "installed and running". All we are given is two choices. CD/DVD or Network. There have to be hundreds of thousands of people who installed software without an "install" program. Nobody cares about us, it would seem.