When the dragged applet is minimized to that taskbar, the close icon for the applet still remains on the desktop and clicking that, closes the applet.

Steps to reproduce :
1) Load following applet inside the browser (plugin2 supported browsers)
http://nicole1.sfbay.sun.com:8080/plugin_tests/JNLPSupport/AppletCommunication/html/TalkinApplet.html
2) Drag applet out of the browser (to drag applet, use ALT + left click)
3) Close the browser, there should be pop-up to create a shortcut.
4) Click "OK" and make sure that shortcut is getting created on the desktop
5) Relaunch the same applet from desktop shortcut.
6) Click on the applet application on taskbar to minimize the applet.

If the applet gets minimized to the taskbar but the closing icon still remains on the desktop, the bug is reproduced.
(See the attachment)
The same behaviour is observed when the steps 3 to 5 are skipped.

When the applet is minimized to the taskbar, clicking on the desktop close icon, closes the applet !

Tested with java 6u10-b24 PIT on Windows XP and Windows Vista.