You remove the extensions by opening the extension manager and uninstalling any extensions that are listed. If you do not do this step you will be left with a recreation of the old configuration and possible leaving any corruption intact.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.