Maya MEL Syntax Highlighting for notepad++ editor. Based on updated commands from Autodesk Maya 2013.
Extract the RAR files to a known folder.
Copy userDefineLang.xml and insertExt.ini into your %appdata% notepad++ folder.
Open any Mel file in notepad++. Syntax Highlighting should be enabled. If its still not, then u can choose Mel in the Language Menu. if you are using the portable version of notepad++ u can overwrite the userDefineLang.xml file in the portable notepad++ folder in \Data\settings.