Custom Software Development by Useful Software, Inc.

<BODY>  <noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-53G53N" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= '//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-53G53N');</script>  <p> Since 1986, Useful Software has earned a reputation for designing and developing software that works, runs fast, and is bug-free. </p> <a href="contents.html">Contents</a> </BODY>