I have the same issue
I have CS5 and it crashes when I use any extension. I upgraded to Data Bridge and Design Extender and uninstall all my extensions but surveyor and theme it before installing DB and DE. When I try to use any extension Dreamweaver crashes, I already deleted the .dat file and still have the error. When I use Site Sculpture, I finish configuring my site, I press the Finish button and Dreamweaver crashes and the same happens with MenuWriter and all other extensions. I only have WebAssist extensions installed.