REG: Desktop integration warning is not displayed

Tested build : mustang PIT b99
Tested OS : Windows

Steps to reproduce:
1. Install mustang PIT b99
2. clear cache
3. go to jre1.6.0/bin
4. launch java control panel
5. check the check box shortcut -> Prompt user
6. launch signed application
javaws http://rohit.india.sun.com:8080/Javaws/Shammy/Shammy1.2.3Submenu.jnlp
or
javaws http://jit048.india.sun.com:8080/javaws_mustang/ssv/test_signed_1.6.0.jnlp
7. When the security warning is displayed, check the check box Always
Now the certificate is imported. And the shortcut is created.
8. Uninstall the application (javaws -uninstall)
9. Relaunch the same application
javaws http://rohit.india.sun.com:8080/Javaws/Shammy/Shammy1.2.3Submenu.jnlp

The desktop integration warning is not displayed.
Similar problem with association also.

Expected behavior :
Desktop integration warning should be displayed as the desktop option is set to prompt user