Hello Ray,
I removed the Adobe Extension Manager.
I restarted the PC
I downloaded a new extension manager and installed this.
Same result, it does not open.
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.