Cookies toolkit is a part of Security Assist 2 so should not be reinstalled.
when you reinstall, install these extensions last in this order:
Css Form Builder 2.0.1
HTML Editor 3.0.2
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.