Auto run disk , and it should start the installer. If not, explore the disk and click install.bat

AOE III - DXR32-X44M7-CYTCX-P6H6P-97CPG
AoE III Expansion key, the warchiefs: WPXD8-7XYFR-4828Q-FV88X-7DGDJ     
AOE III WARCHIEFS - RLD12-XTBWA-RLD13-MDFKA-RCTJP   
AOE III DYNASTIES - KDJMG-PF9JB-BYQ3V-H697Q-CWGHC