Reg From App is a portable program that monitors a specific application on the system and writes the changes made to the Registry in the program window which can be exported as a standard Registry file that contains all the Registry changes that have been made by the application since the monitoring process started.

Only running processes can be selected by Reg from App and the user is asked to pick one of the processes that will be monitored constantly from that point on. Constantly meaning as long as the program is running or the user is not stopping the monitoring.

Reg From App is a Nirsoft application with some limitations. It can only monitor one process at a time which can be bypassed by opening another program window. More pressing than that is in my opinion the missing possibility to start the monitoring before a program is started on a system to include the changes to the Registry that are done during program startup.

In Windows Vista users have to have the same rights as the application that is getting monitored which means that a regular user cannot monitor a process started by the administrator of the system.

The software is compatible to all 32-bit Windows NT systems including Windows 2000, Windows XP, Windows Vista and Windows Server 2003.