Online Support.lnk is a dangerous file, which is created and used by HDriveSweeper. This program should never be trusted because all what it seeks is to show people exaggerated scan results and push them into purchasing its useless license. If you don't want to support scammers and their dirty business, you should never buy HDriveSweeper and similar registry repair tools. The easiest way to fix your computer is to run a full system scan with Reimage and remove all malicious files.
Online Support.lnk is installed on the system as soon as HDriveSweeper enters it. This file is relatively harmless, so the main things that are initiated by it are commercial advertisements, annoying redirects and system's slow downs. However, this file may also be involved to really dangerous activities and try to damage the system, infect files, corrupt installed software and violate people's privacy. That's why you should NEVER leave Online Support.lnk on your computer.
If you want to examine the Online Support.lnk file before deleting it, you should use RegCure Pro. We also recommend scanning computer with reputable anti-spyware for eliminating related malware.