Problems with one website!

Hi friends! I have a problems with http://fileinspect.com/. When I try to click on http://fileinspect.com/fileinfo/wuauclt-exe/  my Norton blocks an  Intrusion Attempt by Local Host. Attacker site listed ashttp://fileinspect.com/fileinfo/wuauclt-exe/

 

Please tell me about the reasons of it. According site advisor this is a trustful site. Why Norton blocks it?