RainGame.zipEh, decided to take JSMorley's "RainGame" addon and improve on it.
Just run the executable and follow the instructions if needed.
This program writes to a config file so the program will need admin rights if you are running from a protected location (E.G. Program Files).
To change the Refresh Rate (how often it checks for games via topmost attribute), just open the raingame.ini configuration file and change the "RefreshRate" value. This value is in milliseconds.
You can also set up a whitelist, a group of programs that are not scanned by this program for "Topmost" status.
Input their process names seperated by a "|" (vertical bar). A default set/example is provided. Please do not remove these or you will get annoyed quickly.(;
Source (Also included in zip):