windivx.dll is a malicious dynamic library file that is related to IEDefender. This file is typically responsible for implementing main parasite's functions and running its destructive payload. With its help, IEDefender gets ability to display fake system scanners, report about invented viruses and show misleading alerts that require to pay a certain fee for 'fixing' computer. Of course, you should never pay this fee. For fixing your PC, you should remove IEDefender from the system.
windivx.dll file is created as soon as IEDefender infects computer. This file cannot run by itself, so an executable file that is responsible for this activity is also created. However, sometimes this file is reconfigured and installed as a plugin. During this scenario, windivx.dll can easily be used for stealing your personally identifiable information, such as banking detains, various loggins and passwords. You are highly advised to scan the system with reputable anti-spyware and remove IEDefender from it. Also, don't forget to get rid of windivx.dll file. For that we recommend using RegCure Pro.