If you ask for the system version information you'll find os-x is 1000  
or higher....

On Dec 8, 2004, at 1:51 PM, Alexander Lazarević wrote:

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> Bert Freudenberg schrieb:
>
> | On Mac OS X you have the "open" command. Use FFI to implement the
> | system() C lib function, then call system('open
> | /path/to/my/file.txt'). You have to give a POSIX path. Works for
> | URLs, too. See "man open".
>
> Interesting. So I could use this for ExternalWebBrowser to launch the
> browser on Mac OS X without the need to have the AppleScript package
> loaded. How do I distinguish wether the vm is running on Mac OS 9 or
> OS X by looking at platformname and platformSubtype?
>
> Alex
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