3rd party pc-tools aren't crossplatform...and

Is there any pc and mac tool for >crossplatform< tricks ?
(talking about extra fscommands, window tricks, URL stuff)

shouts

Besides QT- No.

You can luanch applescripts from a MAC projector using FS Command Exec then refrencing the applescript which can do almost anything you would want. As Applescripts (and JAVA) are also supported by QT which can play Flash up to SWF v 5 (Newest version QT 6) there isn't much desire for much else.