You can find the active .exe file for a game automatically using the LCD screen on a G-Series keyboard.
NOTE: This method only works if you have a G-Series keyboard with an LCD screen. If you have a G-Series keyboard without an LCD screen you will need to use the Windows Task Manager method. See answer 360023265154 for help.
To find the active .exe for a game using a G-Series keyboard with an LCD screen:
Open the Logitech Gaming Software:
Start > All Programs > Logitech > Logitech Gaming Software 8.x
Click the glowing G-Keys.
Right-click the profile you want to configure and select Properties.
Under Select Game Executable, choose the "Select using GamePanel display" option. Then, click OK.
NOTE: You might also want to select the "Lock profile while game is running" option (see 360023265154 for more information).
Follow the instructions shown on the LCD screen of your G-Series keyboard.
Launch your game and progress to where you would begin playing. Don't confirm until you are past the menus and actually playing the game.
Click the Confirm button shown on-screen.
NOTE: Some games have multiple .exe files for different game modes, like Single Player and Multiplayer. You may have to create a profile and then repeat the above steps for the other game mode.
Your LCD screen will flash "Profile Activated" and should now be associated with the correct .exe.