sorry for the trouble. If the service is running while PDF Architect is being uninstalled, it will not get removed properly.
I agree this is a huge issue and really shouldn’t be happening, especially since the service is responsible for displaying popups.
Disabling the service will stop the popups, removing the service and deleting the remaining folder in “program files” should be all that remains. Here is also a link to an uninstall tool which will check the registry and file system for PDF Architect related files and remove everything it finds: http://redeuro1.lulusoft.com/pub/pdfarchitect5/removal/Architect_Remover_1.0.10.34009.exe
What I did was, reinstall pdf architect, go to help -> options -> disable automatic update and nofication system.
Go to services.msc, set pdf manager service to manual and disabled.
Unninstall pdf architect 5.
Everything disappeared.
System clear.
thank you for the feedback and sorry for the trouble. With the latest PDF Architect 5 installer, everything got uninstalled properly on my test machine without needing any additional steps, but in case there are still problems with removing the service, it can now be done directly by running MsiExec.exe /x{8DED36D9-54D6-4127-A112-5A1BA1CDD66B} /q
from a command line.