Tips to make it look less like spam--
Use a better title, like "Review-- Windows Shared Computer Toolkit."
Preface the article, ex. "In my wanderings about the internet I ran across this tool that might be useful, so I thought I would download and review it." or "I ran into this and such problem and the solution came in the form of this tool, this is what it does."
Don't use the words "Microsoft" and "Free" in the same sentence.