I've written a program in PHP/MySQL that will run locally on a client's computer.
Here's what I need to have happen:
Client unpacks folder contents they've downloaded from my website onto their Mac OSX 10.4 OR 10.5 OS.
Client clicks on (1) custom icon.
(2) This (in the background - unknowingly to the client) starts php / mysql / apache and launches web browser with specified URL (http://localhost:8888/).