the stand alone extenisons:
PalettePicker, Paypal, Google Search, Skype Call Me,
are not compatible with Dreamweaver CS6 and are a part of the free tools extension.
Im not sure what you mean by this one:
Forms JQueryt Search validation,
There is a JQuery validation that is part of eCart 6, but is not specific to search and is nota a stand alone extension.
the only extension that we offer that are compatible with Dreamweaver CS6 are:
eCart 5 / 6
you should not have any other web assist extension installed.