SimLauncher has the option to manage TEXTURE_MAX_LOAD and also LOD_RADIUS. As long as you use this program to load and start your flights, the settings will remain. If and when you use the FSX load/start then the settings will revert to the FSX default of 1024 and 4.5
Various virus checkers will return a false positive on parts of SimLauncher but those can be identified and quarantined.
I think you probably mean "Misty Moorings". There are two versions, one for 2004 and the other for FSX. The FSX version (and all the relevant information) can be found at:
http://www.return.mistymoorings.com/