Trojan/Radlight 3 PRO is a trojan, which is always able to produce a lot of harm to the stability and security of the infected system. Trojan/Radlight 3 PRO uses its specific algorithms to download and install various parasitic programs onto the machine; these programs also perform a set of destructive actions, which often result in many different consequences, such as damaging Internet connection or making the whole system work in unstable way.
Adware is any software application in which advertising is displayed while the program is running. The authors of these applications include additional code that delivers the ads, which can be viewed through pop-up windows or through a bar that appears on a computer screen and sometimes through text links or in search results. Adware may or may not track personal information. It may also gather information anonymously or in aggregate only.