INSTALLATION
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1. Unzip file 'Alfs_UK_airfields_Vol_31.zip'  into a temporary folder (already done if you are here!).
2. Open 'Alfs_UK_airfields_Vol_31' and copy 'Reymerston Hall_EGKW' and 'Shipdham_EGSA'  into Microsoft Games/Microsoft Flight Simulator X/Addon Scenery.
3. Run MS Flight Simulator. From the left-hand menu select SETTINGS. In the next window select Scenery Library. 
4. In the SETTINGS-SCENERY LIBRARY window, select Add Area. In the next window select Addon Scenery and scroll down the list and select Reymerston Hall_EGKW. 
5. If running under Windows XP or Vista then click OK BUT if running under Windows 7/8 then click in the space. This should put the selected scenery at top of the list with a tick against it.
6. Repeat 3 to 5 above with Shipdham_EGSA.
7. Now click OK at bottom of the SETTINGS-SCENERY LIBRARY window and the new sceneries will be installed.
8. Back in the SETTINGS window select FREE FLIGHT from the left-hand menu and if you select CHANGE under CURRENT LOCATION you can find and select Reymerston Hall or EGKW OR Shipdham or EGSA.

**** You can also get to the Scenery Library from within FSX when it is running by opening the 'World' tab in the menu at top of the screen and selecting Scenery Library.