install mustang b77 On Vista beta(5308), create a standard account and login, run Java Control Panel, the Java Update Tab is missing. Vista allows some privileged action if user can give administrator's credential, so Java Update Tab should show in any account.
I was able to reproduce the issue.
The Update tab is only missing for the Standard user, but, the user in administrator's group is able to see the Update tab.
The update tab should be visible to all users on Vista, as all users can become
administrator if needed. This support should be added for Vista and later.
Currently, Update tab is enabled only if the user have admin privilege in RegJcontrol.cpp. For Windows Vista, since all of the users have the potential to execute the application with the elevated privilege the following code is added to the IsAdminPrivileges function in UpdateConf.cpp
if( osvi.dwPlatformId == VER_PLATFORM_WIN32_NT &&
osvi.dwMajorVersion >= 6 && osvi.dwMinorVersion >= 0)
This will make the update tab enabled all the time for vista or later.