Windows Installer error - Error 1723.

Error 1723. There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run.

I get this when trying to reinstall Java. I've searched for help on Google and all references indicate I need to reinstall the Windows Installer, but I cannot find any downloads to enable me to do this for the version shipped with the BETA.

Any help would be very much appreciated.

Thanks

C