This must be done by those who use Windows 7 or Vista. In order not to make the game crash when it is trying to load 20-24 cars, you have to replace the rfactor.exe in the main directory with the one found you can find in the F1RFT2012DATA\rFactor\4GBpatch directory. The DRS-KERS plugin works with the original rfactor.exe too but does not work with the DVD version rfactor.exe. For a well-functioning game, where you can even load 33 cars and having DRS-KERS plugin working, you must meet the following requirements: It is recommended to install the modification on a pure rFactor game, which does not have the DEMO and F1RFT 2011 version on, otherwise you must uninstall the DEMO and F1RFT 2011 before installation. Although when you have deleted the plugin F1RFT2012 is working well on Windows 8.į1RFT2012 MP has to be installed on an original rFactor. The RFETire plugin is not compatible with Windows 8 therefore you cannot use both in the same time. In case of Windows 8, Windows 2008 the game freezes.