Install x64 jdk or jre on a windows machine.
Navigate to the registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6448F0A8-6813-11D6-A77B-00B0D0160070}

The x64 jdk and jre have no Contact, Help link, InstallLocation,
Publisher, URLInfoAbout and URLUpdateinfo. See DefaultInstall.png.

In the Program and Features Panel (Add Remove Panel) for Windows Vista
x64 with service pack 1, The Publisher's name is missing. see AddRemovePanel.png.
Also in 6u08 in the Program and Features Panel (Add Remove Panel) for Windows 2008
x64, The Publisher's name is missing for jre.