Opening CakePHP .ctp files with Dreamweaver

Edit Extensions.txt Dreamweaver configuration files.
It should be here on Microsoft Windows : ˜\Application Data\Adobe\Dreamweaver 9\Configuration
And another one should be here : C:\Program Files\Adobe\Adobe Dreamweaver CS3\configuration
On Apple Mac OS X the path should be : ˜/Library/Application\ Support/Adobe/Dreamweaver\ 9/Configuration/
Modify these 2 lines :
HTM,HTML,SHTM,SHTML, … PHTML,CTP:All Documents                    
Then edit /Applications/Adobe\ Dreamweaver\ CS3/configuration/DocumentTypes :