For those, the files should be installed through the program, by that either from the Web Installer or running the Bonus Features by running setup_Bonus.exe file.
If you choose to install the individual files from the Plug-in folder then you will/ may experience the request to provide a serial number or asked to activate the plugin, for some but not all.
Install the entire package not individual plug-ins.
@lata I do not install individual pieces for fun, running the bonus feature, web, or total setup always failed in the newblue install, and that is why the corel technician tried to directly copy this in the proper place as all else failed. He was out of idea's and did not know the true issue. This was not Corel's fault but a nasty piece of perfectly normal windows setting in windows defender.
I do not remember if I changed these settings myself in the past (in view of the specter/meltdown security debacle) or it was windows default. It seems that not all APPS or program install/uninstall .exe have issues with my particular setting, but the Newblue installer/uninstallers certainly do. I hope someone can benefit form this.
And by the way now titler 6 also installs on my system. I think newblue should revise their installers/uninstallers .exe to cope with Force randomization for images (Mandatory ASLR) in windows defender, other apps do not have an issue with that ...