The only reason you would even consider installing WAMP is if you want to experiment with WordPress or develop WordPress themes and plugins locally (on your home or office pc). WAMP does not interact with your live WordPress site in any way. It really has nothing to do with installing or interacting with a WordPress site that is installed on a remote web host.
Would you suggest dl WAMP for a professional use?
Sure. If find you have a desire or a need to run an installation of WordPress locally, it's a pretty easy way to set up an environment where you can experiment with WordPress without affecting your live site in any way. I don't think I would ever recommend using WAMPServer as a live production solution, but it can be a pretty handy thing if you want to see how things look and feel before putting up a live version.