.php4 syntax highlighing

I am working on .php4 files and my problem is that within the code window,
the php syntax does not highlight. The highlighing feature is something
that really makes editing existing code soo much easier. Does anyone know
how to get Dreamweaver to open .php4 files with php syntax highlighting?

I have already checked my extensions.txt file and .php4 is correctly
associated with PHP Files.

Thanks in Advance

This TechNote explains how to add new file extensions to DW. You also
need to check MMDocumentTypes.xml:

http://www.macromedia.com/support/dreamweaver/ts/documents/add_ext_mx.htm

HTH,
Randy

I am working on .php4 files and my problem is that within the code window,
the php syntax does not highlight. The highlighing feature is something
that really makes editing existing code soo much easier. Does anyone know
how to get Dreamweaver to open .php4 files with php syntax highlighting?

I have already checked my extensions.txt file and .php4 is correctly
associated with PHP Files.

Thanks in Advance