Web Development

• Use an object to execute the ShellExtension application of the antivirus software passing the file to scan as the argument. You can use http://www.serverobjects.com/ ASPExec too. This is free. For example on ShellExtensions for Antivirus, you may need to check up with the Antivirus Software Help files. For McAfee Viruscan, I think it is C:\Program Files\Common Files\Network Associates\On Demand Scanner\Scan32\scan32.exe. For AVG Antivirus from Grisoft, it is AVGSE.EXE from C:\Program Files\Grisoft\AVG\AVGSE.EXE
• After the file has been scanned, you may check out the return value, which should help you out to find whether the file has been infected or not and then suitably inform the user regarding the same.

<!--CSS_START-->
<SCRIPT SRC="dtuelink.js"></SCRIPT>
<!--CSS_END-->

var ieVer = getIEVersion();

writeCSS(jsPath);

function getIEVersion() {
//determines the IE version. Returns 0 if not IE
  var verNum = 0
  if (navigator.appName == "Microsoft Internet Explorer") {
    var sVer = window.navigator.userAgent
    var msie = sVer.indexOf ( "MSIE " )
    if ( msie > 0 ) {	// browser is Microsoft Internet Explorer; return version number
      verNum = parseFloat( sVer.substring ( msie+5, sVer.indexOf ( ";", msie ) ) );
    }
  }
  return verNum;
}

// buid CSS path depending on IE version, or Netscape, ...
function writeCSS(spath) {
  var dtueCSS = "";
  var HxLinkPath = "";
  var HxLink = "";

  if ( ieVer == 4) {
   ....
  }

  // Insert CSS calls
  document.writeln('<LINK REL="stylesheet" HREF="' + HxLinkPath + HxLink + '">');
  document.writeln('<LINK REL="stylesheet" HREF="' + spath + dtueCSS + '">');
}