KFAppleScriptHandlerAdditions Makes it easy to call subroutines (with arguments) of compiled AppleScript scripts. Certain simple argument types and returns are translated. Here’s an (artificial) example:

NSArray *numberObjects; numberObjects = [iTunesControllerScpt executeHandler:@”num_albums_by_artists” withParameters:@”Artist1”, @”Artist2”, nil];

http://homepage.mac.com/kenferry/software.html#KFAppleScript