Installing the nip profile:
To install the profile launch nvidiaProfileInspector, once the window has loaded you will notice a bar at the top with "Profiles:" and icons, select the icon that had a green arrow pointing down/towards the square and select "Import Profile(s)", a selection window will open and click on the "Test Drive Unlimited 2.nip", a new window should pop up to say that the profile has been successfully imported. Profile Installation Completed!
Installing Custom Compile DXVK:
To install DXVK, simply copy all the DLLs and paste them in the root of the Test Drive Unlimited 2 directory (folder).
Note: Screenshots below showing in detail how to use Nvidia Profile Inspector (From 1~4)
Installing Custom Steam Overlay API:
To install the Steam Overlay Fix, simply copy "steam_api.dll" and paste it into the root of the Test Drive Unlimited 2 directory (folder). That Simple!
Installing 4GB Patch:
To install the 4GB Patch, open the exe and select "TestDrive2.exe" from the Test Drive Unlimited 2 directory (folder).
Disabling Full Screen Optimisations
V1.1: Currently there are two ways to disable fullscreen optimisation, first option, if you have a steam install in the steamapps folder on your C drive you can use the .reg file in the archive to quickly disable it, option two is to follow the screenshot attached in this guide.
Disabling Manually: Find the TestDrive2 executable, right click it, go to properties, compatibilty tab at the top and tick the box stating "Disable full-screen optimisations". Hit Apply, Okay and you can launch the game!
Note: Screenshots below showing properties window