Duh...thanks very much, f0dder, for your very helpful message. I didn't want something that would depend on my remembering to hit CTL-S. All too often I simply don't think about doing that until it's too late. But your question about whether UltraEdit has such a feature built-in made me take a closer look, and sure enough, it does. It has an automatic save feature that one can set to save every X minutes. One can also say how many versions should be saved, where they should be saved, etc. etc. I'm embarrassed that I hadn't found this on my own, but I'm delighted that it exists. MANY MANY THANKS!!