To explore an installation you have to create a project based on this
installation. Invoke menu item File | New and fill fields of the New
Project dialog as follows:
.msi File will be used as project template should be filled with the
corresponding .msi file.
Directory should be filled with a
project directory into where setup source files
will be placed.
Name filled with a project name.
CopySource set to CopyAll. It is recommended if installation
contains COM servers or .NET / Win32 assemblies or if you are going to
repackage this installation for debugging.