Disable those nasty Sun Java update messages with this fun registry hack!  Just copy and save into a REG file, then double-click on the REG file as an administrator (note on Windows x64 you need to change this to HKEY_LOCAL_MACHINE\SOFTWARE\WowNode6432\JavaSoft\Java Update\Policy for 32-bit Java)

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Update\Policy]
"EnableJavaUpdate"=dword:00000000
"EnableAutoUpdateCheck"=dword:00000000
"NotifyDownload"=dword:00000000
"NotifyInstall"=dword: 00000000
"UpdateSchedule"=dword: 00000000

http://www.leinss.com/blog/?p=1406