When installing gp4 on win8 you should create a new directory for it, e.g. C:\Games\GP4. I had issues when installing it to Program Files, as all files were write protected.
After you've installed the game, install the v9.6 patch [
www.grandprixgames.org].
Then you replace the gp4.exe with the noCD gp4.exe [
www.grandprixgames.org]. Set it to compability xp sp3 and tick the run as admin box.
Now you install gpxpatch v4.30a [
rsdi.home.xs4all.nl]. For the gpxpatch.exe you set compability xp sp3 and run as admin as well.
Run the game now via gpxpatch, and calibrate the audio and graphics. When you've done that, exit the game and save the settings.
After that you can either install ZazTools [
www.grandprixgames.org], or update your wad manually.
Some mods
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