Yes, I have the D3D9 client for Orbiter beta. I also installed the DX9 runtimes and extracted them into my orbiter beta folder, but to no avail. Here is my log:
**** Orbiter.log
000000.000: Build Sep 14 2019 [v.190914]
000000.000: Timer precision: 1e-07 sec
000000.000: Found 0 joystick(s)
000000.000: Module AtlantisConfig.dll .... [Build 190914, API 190914]
000000.000: Module AtmConfig.dll ......... [Build 190914, API 190914]
000000.000: Module DGConfigurator.dll .... [Build 190914, API 190914]
000000.000: Module ProjectApolloConfigurator.dll [Build 221204, API 190914]
000000.000: Module OrbiterSound.dll ...... [Build 200811, API 160828]
000000.000: Module ScnEditor.dll ......... [Build 190914, API 190914]
000000.000: Module ProjectApolloMFD.dll .. [Build 221204, API 190914]
000000.000: Module ApolloRTCCMFD.dll ..... [Build 221204, API 190914]
000000.000: ---------------------------------------------------------------
000000.000: BaseDir : C:\Orbiter2016 Beta\
000000.000: ConfigDir : C:\Orbiter2016 Beta\Config\
000000.000: MeshDir : C:\Orbiter2016 Beta\Meshes\
000000.000: TextureDir : C:\Orbiter2016 Beta\Textures\
000000.000: HightexDir : C:\Orbiter2016 Beta\Textures2\
000000.000: ScenarioDir: C:\Orbiter2016 Beta\Scenarios\
000000.000: ---------------------------------------------------------------
000000.000: D3D9 DLLs : C:\Windows\SYSTEM32\d3dx9_43.dll [v 9.29.952.3111]
000000.000: : C:\Windows\SYSTEM32\d3d9.dll [v 10.0.22000.1042]
000000.000: ---------------------------------------------------------------
000000.000: Module D3D9Client.dll ........ [Build 210722, API 190914]