Step by step instruction:
1. Install the game - Full Installation.
2.Apply the official Settlers 4 v1.06.872 Patch.
###://###.bluebyte.com/pub/SIV_Patches/SIV_872.exe
3.Apply the Crack V872

(use winace from www.winace.com to unpack the xx.ace file)

4.Replace the original S4_MAIN.EXE in the \EXE folder.
5.Create the following directory: <GameDir>\S4
6.Copy the following directories from the <CD>\S4 directory to: <GameDir>\S4
-MAPS (+campaign dir)
-VIDEO
-SND
You can DL the MiscData2.cfg (changing language) from
####://home.tiscalinet.de/siedler1/MiscData2.cfg
copy the file in the \config folder
if necessary change the language entry in the file