I have created a base installation and minor upgrade. If the "Require Administrative previleges" property to any of the installations is set to "No", then creating a patch between these installations causes an error - 6415 telling that the Msi is invalid. I have validated the latest build and it seems to be fine.

This happens even if i have both the installations with No administrative previleges.

Is this a bug to be reported or something that i am doing wrong.