If you use Dreamweaver CS2 or CS3 and code in ASP.NET you'll
know about an annoying problem it has (I'm not sure if they have
fixed it for CS4) - Dreamweaver doesn't know what a Master page is
and tus treats it like plain text, meaning when you open it up you
get no intelli-sense or ASP.NET support! This is really
easy to fix with a quick edit of an XML file in the install
directory of Dreamweaver [more]
1.) Open up the following folder - C:\Program Files
(x86)\Adobe\Adobe Dreamweaver CS3\configuration\DocumentTypes
This is the default install directory
2.) Next open up the file MMDocumentTypes.xml
3.) Now locate around line 57 a <documenttype> entry with
an id of ASP.NET_VB
All you need to do is edit the attributes winfileextension=""
& macfileextension="" and add your master page like so
Do this for both the ASP.NET_VB & ASP.NET_CSharp entries,
then save the file and close down Dreamweaver - Now open it up
again and when you open a Master page you'll see it treats it just
like a ASP.NET page and you have full intellisense.