Mike Gunderloy, who has written a couplearticles about the WiX toolset, posted a comment on a previous blog entry. In the comment, he suggests that splitting a setup project into fragments only moves the problem but doesn't solve it. Thus, he argued that adding a tool to generate the fragments has value.  I still didn't agree.  Then I realized that I disagreed because I have some philosophies about how to build software and setup for software that I've never posted here. So, I thought I'd share those philosophies today. Please note that these are guidelines that I use when discussing setup build processes with other people not hard rules.