I'm betting this is either impossible or highly browser-dependent. It's not entirely obvious to me that a web server is needed to run a CGI that is *on the local machine*. (As, by analogy, we don't need to run a server just to look at local static HTML files.) Yet while it seems theoretically possible that a browser could do this, I don't know whether any of them actually will. Just to stay somewhat on-topic -- I have downloaded Webrick, I just haven't yet understood it. :) So, a serverless CGI -- possible in theory and practice, in theory only, or just not happening? Hal