Although many people may not like Kerish Doctor, it has some interesting features such as HOST file protection, file protection to prevent accidental or intentional deletion, protection to prevent your wallpaper from being changed, scanning of open or closed ports, DNS protection, notification of new extensions when added to your browser, and then Kerish checks the reputation of these extensions, and many other things. It also has malware protection, although I was unable to test this feature. I tested all the other features and they worked perfectly as the application suggests. These features can be useful for many people without the need for technical knowledge or installing any specific application to consult or scan ports, for example. Although there are command prompt commands for this purpose, not everyone is familiar with them.