• MacPython
• AeteSearchOrder

(These are by watching AEDebugSends / AEDebugReceives and looking at ktrace output of osacompile)

iTunes

• Reads Info.plist (probably sees NSAppleScriptEnabled = True)
• Reads Resources/iTunes.rsrc
• Reads Resources/English.lproj/Localized.rsrc

Finder

• Reads Info.plist (probably sees NSAppleScriptEnabled = True)
• Reads Resources/Finder.rsrc
• Reads Resources/English.lproj/Localized.rsrc

Mail

• Reads Info.plist (probably sees NSAppleScriptEnabled = True)
• Reads Resources/Mail.rsrc
• Finds nothing in Resources/English.lproj

iChat

• Reads Info.plist (probably sees NSAppleScriptEnabled = True)
• Looks in Resources and English.lproj, finds nothing
• Looks in the iChat executable and its resource fork, finds nothing
• ascr/gdte, answers with aete

Terminal

• Reads Info.plist (probably sees NSAppleScriptEnabled = True)
• Reads Resources/Terminal.rsrc
• Finds nothing in Resources/English.lproj