nndll.dll is a dynamically linked library. In simple phrase, it is an essential component of a particular parasite. Most threats depend on such libraries and wouldn't work without them. The nndll.dll file can be responsible for the dangerous payload a parasite carries, so deleting it will definitely reduce all the security and privacy risks.
The nndll.dll file is installed and used by adware
AdvSearch and
ActualNames.
In most cases nndll.dll is responsible for all the harmful actions the pest takes. Removing this file will immediately terminate the parasite or partially disable it. That is why the nndll.dll file must be manually deleted. If you cannot erase it, consider using recommended spyware removers, which will get rid of nndll.dll and associated parasites for you.
In some cases a presence of nndll.dll does not mean that your system is infected. The file may actually belong to some fully legitimate applications and therefore must stay intact. If you are in doubt, please scan the nndll.dll file using you regular spyware remover or antivirus program.
