1) Back-up the Panzer Corps/Data folder before proceeding 
2) Extract the rar file in either
\SteamLibrary\SteamApps\common\     
for the Steam version of Afrika Korps
OR
\Slitherine\ (or wherever you have installed Panzer Corps)
for the non-Steam version of Afrika Korps
3) Start the game, chose Afrika Korps and start playing Italy Corps, the 9 scenario campaign prior to the Afrika Korps campaign.

