.php file extension in DreamWeaver CS5 .ast file extension in DreamWeaver CS5

Hi folks, Even After I forced DreamWeaver CS5 to allow opening of .ast extensions as a MIME type of php5, which DreamWeaver now opens and colors correctly as described here, I still have trouble figuring out why it still discriminates between the two file extensions!

Symptoms: External Files & Design View
I have a file foo.php which php includes other files (e.g. the php-combined css.php and js.php). Now, when opening foo.php all functions work perfectly: the external (included) php files are all recognised correctly. However, when I change foo.php >> foo.ast, and open it again, It does not recognise the files extensions anymore in the top bar. Also, I lose the Design / Live View functionality.**

When I change foo.ast to foo.php, all works again!
Anyone any clues of why there remains a a difference between one and other extension?

Note1: I have added the .ast extension to these four files, next to .php:
1 C:\Users\Sam\AppData\Local\VirtualStore\Program Files (x86)\Adobe\Adobe Dreamweaver CS5\configuration\DocumentTypes\MMDocumentTypes.xml 2 C:\Program Files (x86)\Adobe\Adobe Dreamweaver CS5\configuration\DocumentTypes\MMDocumentTypes.xml 3 C:\Users\Sam\AppData\Roaming\Adobe\Dreamweaver CS5\en_US\Configuration\Extensions.txt 4 C:\Program Files (x86)\Adobe\Adobe Dreamweaver CS5\configuration\Extensions.txt

Note2: sometimes, even .php files do not want to show in design view or live view. Could this be caused by a corrupted installation?


I was having the same problem, although with a different file type.

Do you have a MMDocumentTypes.xml file in C:\Users\Sam\AppData\Roaming\Adobe\Dreamweaver CS5\en_US\Configuration\DocumentTypes? If so, I would add the .ast extension to it.

  • thanks Pete +1 you are my possible hero if solving this together. But wait: i see no DocumentTypes folder in my /en_US/Configuration root folder... are you sure you have that folder? – Sam Apr 8 '11 at 16:33

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