I THINK GOOGLE should remove potentially dangerous files from its index. Files such as EXE, REG, MSI, and COM can be spyware. You can find those files in Google search results. Google Mail already restricts you from attaching EXE files or ZIP archives that contain EXE files. That restriction seems like Google knows it's dangerous to shift or click on those files. I think it's time to purge them from the Google index as well. Search for "size of stack reserve" and you can see what I mean.
Google Operating System -- "Some Google Results Are EXE Files"