All products on Download.com are downloaded, installed, and scanned for viruses and malware before being published in our library.
Many software titles on our site, including Acala DVD Ripper Professional, do use the Download.com Installer, which securely delivers software from Download.com's servers to your computer. During this process, the Download.com Installer also shows offers for additional, free applications provided by our partners. Some individual software publishers include such offers in their own installers too.
All offers, whether included in the Download.com Installer or in individual publishers' installers, must conform with our security policies prohibiting malware, and must also provide a working method to decline or opt-out of them during the download. You are never required to accept any offers in order to complete a download. However, offers of this nature can trigger false positive detections from certain antivirus programs.
We re-tested the download at the following location and did not find any issues with the file:
Although you cannot avoid using a software publisher's own installer when downloading their program, if you prefer not to use the Download.com Installer, you can simply click the Direct Download Link that is provided on all Installer Enabled product pages.
Read more about that option here:
For more detailed information on the Download.com Installer, please visit the following resource:
I just downloaded Acala DVD Ripper Professional from CNET, and AVG AntiVirus reports that there's a trojan horse when I run the install program.