Tutorials

I've been guessing at the Mozilla source codes, and I've screwed up 
Mozilla suite several times!  I just need some good tutorials on RDF and 
XUL.  Also, I would like to know how to open up separate extensions in 
Win32 Command Prompt.  For example, I'm running Netscape 7.2.  and in 
command prompt, it says

C:\>start C:\Program Files\Netscape\Netscape\Netscp.exe -chat

Would launch ChatZilla!.


And, the calendar extension would launch by me typing:
start C:\Program Files\Netsape\Netscape\Netscp.exe -calendar

What file(s) are used to do this?