Error While Installing Woltk

Hello,
I download woltk 6 GB installer from the link provided by Warmane. When I try to install the woltk, it shows me an error "Please pause or stop Google Desktop Search before continuing this installation." I dont think so that kind of search option installed in my PC. Please guide.

Install WoW? Our clients are already ready-to-play. Make sure you downloaded it from our webpage.
Also, I bet you can stop anything ongoing from Google from the Windows task manager if you do not ready know what this Google Search is.