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Windows 8 Steam 1) Download and Install the game through Steam. 2) Download and Install the DirectX 9.0c (Right Click and Run as administrator). If needed 3) Locate the Steam folder (C:\Program Files (x86)\Steam), select Steam.exe > Right Click > Properties > Privilege Level put the check on "Run this program as an administrator" . Click Apply 4) Locate the Call of Duty 2 folder (C:\Program Files (x86)\Steam\steamapps\common\Call of Duty 2), select CoD2MP_s.exe > Right Click > Properties > Compatibility and set compatibility mode for Windows XP SP3 . In privilege Level put the check on "Run this program as an administrator". 5) *NOTE* When you launch the Multiplayer what may happen is you will see two mouse icons, one of the game and one of windows, press the windows button of your keyboard for go back at windows and click the call of duty icon on the taskbar for the game to come back up. After it should work. Install and update PunkBuster ---------------------------------------------------------------------------------------------------------------------------------------------------------------- Windows 8 non-Steam DO NOT USE THE AUTO LAUNCH 1) Right-click > Open on the drive containing the CoD2 DVD 2) Select setup.exe > Right Click > Properties > privilege Level put the check on "Run this program as an administrator" . Apply, double click on setup.exe and install the game. 3) Download and Install the DirectX 9.0c (Right Click and Run as administrator). If needed 4) Download and Install the Call of Duty 2 Patch 1.3 (Right Click and Run as administrator). 5) Locate the Call of Duty 2 folder (C:\Program Files (x86)\Activision\Call of Duty 2), select CoD2MP_s.exe > Right Click > Properties > Compatibility and set compatibility mode for Windows XP SP3. In privilege Level put the check on "Run this program as an administrator". 6) *NOTE* When you launch the Multiplayer what may happen is you will see two mouse icons, one of the game and one of windows, press the windows button of your keyboard for go back at windows and click the call of duty icon on the taskbar for the game to come back up. After it should work. Install and update PunkBuster
Also found here---- http://www.xtremeidiots.com/page/public/bible/_/call-of-duty-2/guide-for-installing-cod2-r1