F-Secure Booster did not open due to missing mfc120u.dll
I have been using F-S Booster since 21.10.2015. Yesterday (23 Feb) , perhaps in connection with a Windows 10 routine update, I could not open the Booster due to error message "missing mfc120u.dll" advising to reinstall the program. What is this missing "dll" needed for and why was it lost?
After this mishap I have today reinstalled the F-S Booster (version 126.96.36.1995) which looks better than the previous version I had. Seems 120 days of usage remain of my licence. Unfortunately, I cannot find other details of my original licence for the Booster. Any help from F-Secure?