HotBar - click here
The reason is says "Removing some adware may disable software etc" is that some AdWare and SpyWare comes "bundled" with other programs, for example, a game or a P2P Program. You get the original program you wanted for free on the basis you also allow the AdWare / SpyWare on your PC too. It's designed so that if you remove the AdWare / SpyWare the original pogram will not work.
I would remove it.