Save game and setting files are carried forward with no issues. The only file changed by this patch is GTA-VC.EXE which is upgraded to version 1.1
Click start to begin the update process. If the patch finds an un-modified GTA-VC.EXE, then this file will be updated to version 1.1, otherwise no patching can occur. The patch will check for the presence of the correct GTA-VC.EXE file. After clicking next twice, browse to your installed Grand Theft Auto: Vice City directory (the directory where GTA-VC.EXE resides) and click next. OPTIONAL make a copy of your original GTA-VC.EXE file (from the directory the you installed Grand Theft Auto: Vice City, for when this issue is fixed with a driver update, and you would like to revert to the original version).