If you have any issues when trying to fly,
Follow the advice in the FAQ. (Section 17) is a good one to try first.

Also see 40) and 50)

AnKor's DX9 shaders for self-shadowing and a lot more great features, are included in WOFF.

For this you need to make sure oyu have DirectX9 installed.
Even if you have DirectX 11/12 already installed (Windows 7 or Windows 8/8.1, Windows 10 etc)

The installer for DX9 is now included in the WOFF folders once oyu have installed WOFF. See C:\OBDSoftware\WOFF\Toolbox\DX9Redist
Run directx_Jun2010_redist.exe in there, it will extract to a folder you give it.
Go to that folder, then run DXSetup

You can also get it here http://www.microsoft.com/en-us/download/details.aspx?id=8109 but we recommend the one mentioned above.

Usually this works better than the small web-update version from Microsoft - that can often leave one or two files out.

More details on where to get DirectX 9 and how to install this correctly here :

For WOFF BH&H II

Please see section 2A of the BH&H II FAQ for installation of DirectX9
https://www.overflandersfields.com/index_html_files/FAQ_WOFF_BH&HII.pdf


For WOFF UE / PE
See section 4 in the latest WOFF UE FAQ and other areas for help.
http://www.overflandersfields.com/Downloads/FAQ%20WOFF%20UE.pdf