Hi, Before I relay the results of my recent virus scan, let me say up front that xilisoft makes darn good software. Unfortunately, if their software contains malware, I will cease to use their products. I've tested three of their softwares (Xilisoft Video Converter Ultimate 7, Xilisoft DVD Ripper Standard 7, and Xilisoft Video Editor 2) using the multi-engine virus scanning site virustotal.com. At the time of my first scan, I received the following positive result (most engines said the scanned file was clean). Virus engine: Antiy-AVL Name of malware: Trojan[:HEUR]/Win32.Unknown I have also received other positive matches, but those matches have ceased to show up in the virustotal results. In regards to the above match, based on previous experience, I assume this is a heuristic (trojan) virus, or in other words, a potentially suspected/undocumented virus (the ".Unknown" extension reinforces this interpretation) that steals user data or otherwise harms a system. I looked online and couldn't find any information regarding this specific virus including its severity, whether its a false positive, etc. etc. I've contacted their online support and gave up as their replies were not helpful. My question is: Could anyone relay their opinions, knowledge or findings regarding the level of safety and security in using xilisoft's software (specifically the three softwares mentioned above). I haven't found much information online. Note: I have purchased all of these softwares legitimately. The exact files in question, downloaded from their main page www.xilisoft.com are: Xilisoft Converter Ultimate 7 http://www.xilisoft.com/webapp/down...eo-converter-ultimate7&version=126.96.36.19920529 Xilisoft DVD Ripper Standard 7 http://www.xilisoft.com/webapp/down...x-dvd-ripper-standard7&version=188.8.131.5220529 Xilisoft Video Editor 2 http://www.xilisoft.com/webapp/downloader.php?product_code=x-video-editor2&version=2.0.1.0111 Thanks for your feedback.