advert.dll is a library file that is installed by adware-type programs. In most of the cases, it is used by Aureate.Radiate and Aureate.Radiate.B that are used for promoting affiliate parties. Nevertheless, no matter how harmless such programs look, you should be very careful with them because after clicking on one of their banners or ads you may be redirected to a suspicious website. Besides, adwares are also capable of initiating various suspicious activities behind people's back. For example: they may track their browsing activity, block certain programs and so on.
You should never leave advert.dll on your computer because this file contains a malicious code, which implements main parasite functions. This file usually needs to be loaded by an executable file or other pest files. Nevertheless, it can also work as an independent component, for example, a harmful web browser plugin or a hidden system service. Removing this file will immediately terminate the parasite or will help you to disable it. That is why you should remove advert.dll from the system ASAP. For that we highly recommend using Reimage.
Attention! Sometimes a presence of advert.dll does not indicate that your computer is infected. It can be an essential system file or a file that was installed by a harmless and legitimate software. Therefore, you should always examine files before completely deleting them from the system. For that you can use RegCure Pro.