Adding Dreamweaver Extension Using the Extension Manager

The extension manager is a standalone program that works with Dreamweaver to help you manage your extensions. The extension manager will help you install and remove extensions, turn them on and turn them off.

File Extension : .mxp

Plus it works with Flash and Fireworks to manage their extensions as well.

1. Open the Extension Manager by going to the "Commands" menu and choosing "Manage Extensions...".
2. If you haven't already, download the extension or extensions you want to install.
3. Make sure that Dreamweaver is displayed in the drop-down menu (the Extension Manager handles extensions for several programs).
4. Go to the "File" menu and choose "Install extension". This will open a standard file selector box. Browse to the file you downloaded and click "Install".
5. Read the disclaimer. Then click "Accept".
6. Click "OK" and close and restart Dreamweaver.

For More Detail: Go to : WebDesign.About.com