Do you have a page open in Dreamweaver when you are trying to access menu writer? If not, you will have to open one before trying to open Menu Writer.
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.