Sort of but not exactly. I don’t use WampServer, so the specifics for that type of installation may be off. But generally speaking, www may or may not be the public document root for the server, it depends on how the server is configured. Additionally, we can change that configuration, so even what is normal may not apply.
I’ll assume you know at least that www is indeed the public document root for your installation. I’m also assuming you have not yet run the WP installation script. (it should run automatically on initial access) If you added another folder to document root (www) and placed WP files in that sub-folder, then include that folder in the requested path. If the folder you added was “mywp”, enter the following in your browser’s address bar: localhost/mywp/
If that does not result in the installation script, request it directly with localhost/mywp/wp-admin/install.php
Once you have WP properly setup, you can define aliases that enable you to directly access the /mywp/ folder without including the /mywp/ in the path. For example, the alias “clientwp” in place of localhost/dev/ could be how you access a particular /dev/ sub folder WP installation. Just FYI in case you have second thoughts about adding a folder. Don’t worry about how this is done right now. First get WP working through localhost/mywp/ or whatever your folder name is.