The project automatically identified several merge modules, so this wasn't the problem. It turns out that the one step I missed relates to the addition of nimetautils.msm, which I added manually. At the end of the help topic "Distributing Measurement Studio .NET Applications," there is a footnote that says that in order to include nimetautils.msm, I must manually add ProgramFilesFolder to the directory table. Note: I added nimetautils.msm because it compensates for dependancies that are missing from one of the required merge modules. I don't actually need nimetautils, except to make the installer work.