Is it possible to have the DX9 Version and install the new DX11-BETA as a second rFactor2 Installation?
Yes if you backup DX9 before deploying Alpha, else you will just need to redownload 1108 post backing up alpha DX11
There's another thread with some good advice here: https://forum.studio-397.com/index....install-seperate-dx9-betas.55329/#post-890225