Carroll is a simple tool to control the screen resolution of a monitor. In situations where several people use the same computer, logging in under different accounts, the resolution of the display screen is set equally for all users. This is not always convenient, because Each of us has different preferences for the screen settings, which may also depend on the applications used.
The program will allow you to change this situation, giving every user the opportunity to automatically (without manual intervention) use the screen resolution he chooses when entering the system. When you first start the program, you will be asked to decide on the type of permission from the list provided. The list is big enough, experiment to get the best result for you. When you find the type you need, then simply click "Change screen resolution and restore with every logon" - now this is the default screen resolution mode when you log in to the system. Similarly, there are other users of the same PC, but under their account.
It seems like nothing special Carroll does not, but still, such a setting can be very useful, without forcing to constantly change the parameters of the screen "by itself".