My current version of TCAS2v7.dll is 1.1.4, most likely over written by an older version when I added an aircraft that came out BEFORE the queen (FS9, also the F model).Yes I have read the FAQ's about how to get the file updated and back to normal...."The simplest way to replace the dll is to open your original 747-400 installer (not the updater) and run the installer. Select "repair" from the menu that appears - and it should find and replace that missing dll. Once the installer has completed it's task- repeat the steps in this sequence to ensure you have the correct dll present"I ran my original installer (The Aerosoft CD Ver 1.1) but I get an error saying I need to uninstall V1.2 to be able to install V1.1. I never get a "repair" option.Also, running the F version installer the "repair" option does not replace the file, the old TCASV7.dll V 1.1.4 is still there.Do I really need to uninstall everything just to replace an older version of the TCAS2v7.dll?Al Stiff

LVD SP3 includes the newest version of this file.Thanks anyway....