Chapter 5. Understanding the Installation Sequence

In order to coordinate the use of the WiX elements we've seen and the jobs that they do, we have two tables, InstallUISequence and InstallExecuteSequence that contain the order in which installation events should occur. For example, AppSearch always happens before launch conditions.

In this chapter, we'll talk about how these tables work. Specifically, we'll cover:

• The events that happen during the UI sequence and how to access them

• The events that happened during the execute sequence and how to access them

• How to add your own custom actions to a sequence

• The various types of custom actions

• Some tips on writing C# custom actions via the DTF library