Posted 20 November 2007 - 11:26 AM
From the BC glossary:
A program that when run, has the ability to self-replicate by infecting other programs and files on your computer. These programs can have many effects ranging from wiping your hard drive, displaying a joke in a small box, or doing nothing at all except to replicate itself. These types of infections tend to be localized to your computer and not have the ability to spread to another computer on their own. The word virus has incorrectly become a general term that encompasses trojans, worms, and viruses.
Software often advertised as Freeware or Adware but that install in your computer, generally without your knowledge, other programs that run in the background collecting data about what web sites you go to, your personal information, the games you play, the software you use, etc, without your permission. The software will then send this information back to the creator's servers where it is collected.
Even though the distinction can become blurred, an Antivirus will search for and make harmless the more serious kinds of infections, and Anti-spyware applications will search for and make harmless a much larger (and much less well-defined) number of instances.
Now AVG is an antivirus (althought AVG ALSO has an anti-spyware application as a separate free download. Generally speaking, the average user needs only one AV resident on his computer providing both on demand scanning and real-time protection. Having more than one checking your downloads can cause problems because they can conflict, and certainly slow down your speed. There are many free on-line scans that can be useful as "second opinions."
But in addition to AVG, a wise internet traveller will also have several anti-spyware applications on his computer. Because the criteria for what constitutes spyware will vary from company to company, each application will look for and find a slightly different set of files; having more than one anti-spyware will increase your coverage.
I hope this answers your question, and if you have additional questions, please don't hesitate to ask them by replying to this thread.
Whereof one cannot speak, thereof one should be silent.