The advice to check the Releases View is what fixed it for me.    Media->Releases in the left pane, then under Releases->Build Setup  there are a number of entries in my project. Debug Setup, Release Setup, Debug MSI, and Release MSI. Click on each one of those, then click the "Setup.exe" tab. The second-to-last entry is "InstallShield Prerequisites Location". I set this to "Follow Individual Selections", as my installer also required "Microsoft .Net Framework 4.6.1 Web" in addition to the NPCAP installer.  (Make sure the .Net Framework 4.6.1 Web prerequesite needs to be set to "Download From The Web" in Application Data->Redistributables after changing the value in setup.exe, or you may get a different compilation error) Charles. ... View more

I'm not sure and it probably depends on the details of your lock down. But what does the error message say exactly? ... View more

Right, but what I'm saying is that's far too complicated. I build my project with nmake. I have a script that automatically updates the version number based on the GIT repository, so every change that is made can be tracked. I cannot update the product code and such through a makefile, that has to be manually changed. It's a big hassle, and I just don't understand why Installshield doesn't have the option to always always always uninstall an old version first.  I've got my one project working by using the version numbers in the major update screen to force a major update for all lesser versions. But every time I start a new installer project I have to fiddle with all the settings to get the files to always be replaced, otherwise older versions of the files end up left on the target machine. I'm always fighting installshield to get what I want. I feel like there should be a simple, clear option for this very common use case. Charles. ... View more