Don't pay $50 until you have checked out Minimizer-XP:
I asked in the members board at osicodes.com for a demo or trial of "PHP Live! WinApp System Tray Application" just to get shot down..
As I was unable to get a trial or demo I had to go looking for something to do the same thing but that had a demo so I knew what it did and how it worked.
Well I had very good luck in finding Minimizer-XP,
Only $12.95 and lets you minimize ANY window.
I am not sure how it matches up to the
PHP Live! WinApp System Tray Application..
But it will minimize any window to the sys-tray and pop the window up when someone request a chat for alot less money. Download the demo and check it out