Folks, I accidentally omitted the URL for the anti-virus software. When Mike Saw pointed this out, I went looking for it again, but the URL lead nowhere. Seems that the company no longer distributes it free. Maybe that is the price of success.
My apologies to you all. Cheers, John "Far better an approximate answer to the right question which may be difficult to frame, than an exact answer to the wrong question which is always easy to ask" John W Tukey, statistician