Compile and run this in Applescript Editor to test if Growl is installed and can be called from Applescript.

test-growl.applescript

on run
  sendGrowlNotification("Growl works!")
end run

on sendGrowlNotification(message)
  --display alert ("Message: " & |message|)
	-- see http://growl.info/documentation/applescript-support.php
	tell application "System Events"
		set isGrowlRunning to (count of (every process whose bundle identifier is "com.Growl.GrowlHelperApp")) > 0
	end tell
	
	if isGrowlRunning then
		tell application "GrowlHelperApp"
			-- Make a list of all the notification types
			-- that this script will ever send:
			set the allNotificationsList to ¬
				{"Public URL"}
			
			set the enabledNotificationsList to allNotificationsList
			
			-- Register our script with growl.
			-- You can optionally (as here) set a default icon
			-- for this script's notifications.
			register as application ¬
				"CopyDropboxURL" all notifications allNotificationsList ¬
				default notifications enabledNotificationsList ¬
				icon of application "Dropbox"
			
			notify with name ¬
				"Public URL" title ¬
				"Copy Public URL" description ¬
				(message) application name "CopyDropboxURL"
		end tell
		-- icon of file (path to me)
		--	icon of application "Dropbox"
		
	end if
end sendGrowlNotification

Created for dergachev/copy-public-url#10