Provides background information on merge modules and describes the Deployment Toolkit's support for them.
Merge modules provide you with a standard method by which you can deliver shared Windows Installer components and setup logic to your applications. See MSDN for information on merge modules.
The Deployment Toolkit includes a merge module (.msm file) which you can merge into an application’s .msi file to make available all of the Enterprise Server components. It also includes a merge module for the Microsoft Visual C++ Runtime, which is a prerequisite of Enterprise Server.