It sounds like you installed the malware newnext.me. Based on what I found in search, it slips ads in your browser etc. Possibly your anti-virus software or an uninstall wiped out that DLL; either way you do NOT want it back but you can clean up your start-up so you stop getting the error.
You probably installed a browser add-in, maybe even the conduit crap. You will need to uninstall the program(s), clean your browsers of any add-ins it included, and fix your start-up.