To anyone who knows the answer: I wonder if I can ask an Off Topic question. I ran a small DOS programme this morning, that I've run many times before with no problems. However it misbehaved this morning. It's a little programme called TODAY. What it does is inform me which files have been modified since a time interval that I specify. Well, this morning, it started and listed a certain number of file, and the concluding line was "runtime error 202...". I've never seen this in the past. What has gone wrong? I looked up the meaning of the "warning" on the net, and it seems harmless. But, should I be concerned? and why I am suddenly seeing this message? M.W. Poirier