I have an ant script to manage out build process. For WiX I need to produce a new guid when we produce a new version of the installer. Anyone have any idea how to do this in ANT
I'd use a scriptdef task to define simple javascript task that wraps the Java UUID class, something like this:
Result:
[echo] 42dada5a-3c5d-4ace-9315-3df416b31084
If you have a reasonably up-to-date Ant install, this should work out of the box.