Unzip the file into the HOI directory. Be sure and select keep the directory structure/names and select to overwrite the files when prompted.
To unzip the file you can use the program built into WinXP or you can use winzip or simmilar program which you can DL free of charge.
To unzip the file you can use the program built into WinXP or you can use winzip or simmilar program which you can DL free of charge.