After downloading the IE add-on for web2PDF from http://www.web2pdfconvert.com/add-ons/ie/web2pdf-converter.exe
Ashampoo Anti-Malware reports (Found infection "Tojan-Dropper.MSIL!IK" in object "D:\DOWNLOAD\Utils\PDF Creators\Web to PDF Converters\Web2PDF\IE\web2pdf-converter.exe".)
Neither NIS 2011 nor Norton Power Eraser detect this. NIS classified it as "Trusted"