OS X

[Sarah]

> Do OS X directory paths use "/" or ":"?
/

> Does OS X use Unix/Windows style filtering for answer file?
I don't think so. The only one that seems to work for me is using type 
and specifying the 4 character file type
e.g. answer file "Select a text file" of type "TEXT"

> Does OS X have a File Exchange type Control that can be applescripted 
> to set
> the file extension mapping? If not how do you register an extension 
> for an
> app?
I think OS X still uses the old Apple file type & creator type to link 
an app to it's documents. You can change the mapping manually using the 
Get Info dialog, but I don't know how to do it with AppleScript.

Cheers,
Sarah