Update doc type associations on OS X

[Richard Gaskin]

I'm making an installer for OS X which will install the latest version 
of my app while leaving any older version the user may have installed 
intact.

But when the user double-clicks a document associated with my app, I 
want to make sure the Finder associates that document type with the new 
app, not the older version they user may have been using.

In the Finder's Get Info window there's a way to tell the OS to 
associate a specific doc type with a specific application.  How can I do 
this programmatically in my installer?  Is there some nifty AppleScript 
command to do that?

TIA -

-- 
  Richard Gaskin
  Managing Editor, revJournal
  _______________________________________________________
  Rev tips, tutorials and more: http://www.revJournal.com