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 self shadowing dll is was included in WOFF3 and now the latest and updated for WOFF UE.

You WILL need DirectX 9 installed if not already (yes even if you have DirectX 11 already installed (Windows 7 or Windows 8/8.1, Windows 10 etc)

It is now included in the WOFF UE install such as 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:
http://simhq.com/forum/ubbthreads.php/topics/4041135/WOFF_EXPANSION_TROUBLESHOOTING#Post4041135

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

Polovski:
If you are going to include AnKor's latest DX9 shadow mod in v2.0, are you going to sticky this link or include it as part of v2.0 so everything will work correctly for those who do not have this already ???

For any Direct X neophyte's (like me) I have a new machine with DX 11 and was concerned about installing DX 9 for fear it would overwrite something and cause problems. With strictly DX 11 I could not use the Ankor's shadow mod.

I installed DX 9 with the above link and it apparently overwrites nothing, everything is working fine, and my system still lists itself as DX 11.

I have to say the shadow mod is one impressive piece of work and really works well, looks incredibly great, and causes no FR loss.
Run, don't walk, to get it and you will be amazed.
I was.