You likely missed a folder during the "Overwrite" step. Re-copy the abdata folder into the game directory.

If you run into a specific error message, I can help you decode it. Are you getting a black screen , or is the installer failing to find your game path?

: Launch the .exe file and follow the wizard. It will automatically detect your game folder and install the necessary components.

: Removes the original mosaic censorship from the game.

: To temporarily disable the patch/mods without a full uninstall, move the winhttp.dll file out of the main game directory.