Don't know if this was discussed elsewhere, but... I found this web site while chasing threads on this very topic (except I'm working with W2K sp4). http://corob.net/msjava/ He came up with a trick method of installing MSVM on W2K or XP with any service pack version. Although he doesn't really detail it, if you're using IExpress to make a custom MS JAVA installer (after extracting/integrating the 2 packages as described), just add the switches he suggests where you select the executable "javatrig.exe". For full unattended installation without reboot, the string should look like this: "javatrig.exe /l /exe_install /nowincheck /q". I launch the package from RunOnceEx without additional switches... works cherry! It works fine as a standalone installer, too. CG PS> This is my first time posting on this forum. I tip my (virtual) hat to the crew of MSFN and all it's contributors. Excellent work!!!