We have a current product out in the field version 4.30. We are working on our new version 4.40 which now has a new set of merge modules for Crystal Reports version 11.5. The version 4.30 did not have any merge modules in it. If I run the version 4.40 install as a new instance it will install the crystal reports merge modules. But if I run it as an upgrade over a previous 4.30 install the merge modules do not install. I have tried to create a new feature for just the merge modules and selecting that feature in the code to force the install but that did not work as they still did not install. How can I force the merge modules to launch and install?
Once a merge module is merged in, it is just another set of components to the MSI.
Are you running your upgrade as a minor upgrade? If so, you are essentially doing a reinstall, and MigrateFeatureStates by default will only reinstall the components that are already there. You may have to experiment with setting ADDLOCAL to force the reinstall to install additional components. (Or you might be able to mark the new feature as "required" by a feature that you know is installed. I haven't done that, but I believe I've read about others doing it.)
