Originally posted by Snowy_River
That's not a fair point in talking about backward compatibility. If software companies had to provide that kind of backward compatibility then our Word documents could be openned with Word v1, and we'd have no where near the feature set that we have today, because the format that Word v1 saved to is incompatible with it. On the other hand, can Word XP export back to Word 97 format? There you have backward compatibility.
Another aspect of backward compatibility, though, and a fair one to bring up in this context, is how old a system can Word XP run on and still give you decent performance? I remember at one point I loaded ClarisWorks 4 (shortly after it first came out) onto an old (i.e. 7 year old) Mac (I had to use a network connection because CW4 was on CD and the old Mac didn't have a CD drive). I was astonished to see that it ran perfectly. While it couldn't handle some of the larger files that my other Mac could, due to memory restrictions (4MB RAM, max), it still worked flawlessly, and quite snappily. Now that's backward compatibility...