I am very confused with this thread. What exactly are we trying to accomplish here? Launch apps from the panel? Add icons on the systray? Application shortcuts on the taskbar?
One more alternative...

- Right-click on desktop and select Unlock Widgets.
- On the Menu, right-click on desired app, select Add to Panel.
- When done, right-click on desktop and Lock Widgets.
Note: As I use Smooth-Task, I'm not sure if this would work with the normal taskbar.
HTH