Windows Firewall Has A Backdoor?

I was just poking around with the Windows Firewall on my system. When I went to look at the exceptions, I was confronted with an entry that I couldn't recognize, rk.exe. Rk.exe was allowed full access to and from my computer. I did a quick search for rk.exe on the internet and came across ProcessLibrary's website which stated the following about rk.exe:

rk.exe is a process that belongs to a software from RelevantKnowledge. The software monitors how you use the Internet as well as displays various surveys in popup windows. This process should be removed to protect your personal privacy. For more information visit their privacy policy agreement at http://www.relevantknowledge.com/Agreement.htm

Let's see, RelevantKnowledge, um, never heard of them, I know what software I have installed, and none is from this company. Anyway, what else does it say? Um, 'The software monitors how you use the Internet', well, this can't be too good, ok then, how about 'displays various surveys in popup windows'. so let's add it up...