WE should have a custom search with a select so that the user can select from a list of JREs installed on their system for Jenkins to use.

If we don't find any then it is as simple as providing a link to the download site so that the user can get the JRE and install it.

This has the following benifits:

• we no longer have to worry about producing both 64bit and 32bit installers.
• We no longer have to worry about shipping Jenkins with a JVM that has known network exploits (the version we create an LTS with may be safe and if we get the timing wrong Oracl can announce a load of vulnerabilities)
• The installer size reduces by approx 50% (downloads are faster, less cost to store/transfer for mirrors)
• we don't have to worry about upgrading the JRE - on Jenkins update - which there have been rumours about is sometimes flaky and requires extra reboots.
• we no longer have to run light - we know what files we package etc so can streamline the packaging.

Downsides

• extra work to do in the installer. (A custom UI screen and a some registry lookup - nothing too complex)