What extensions, including the version numbers do you have installed?
The extensions that we offer that are compatible with DW CS6 are:
eCart
Design Extender
Data Bridge
Free Tools.
the older stand alone extensions are not supported in DW CS6.
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.