Upon attempting to add a program to the Protection tab, PG puts out an error message in which the user is requested to make sure the program is not already listed and that it is executable. But the program, Registry First Aid's rfagent.exe, is not already listed and it is an exe file. What's the solution to listing rfagent.exe?
Problem Solved: The program, rfagent.exe, I wanted to add to the Protection tab happened to be already listed in the Security tab; so by right-clicking on rfagent.exe within the Security tab, one of the options that pops up allows the selected program to be added to the Protection tab.