Troubleshooting LEGO Rock Raiders Game Installer Not Running First try running the installing in compatibility mode for Windows 98. If it still does not work, you can still salvage your game by following this guide. "Missing d3drm.dll" Error When Running Rock Raiders Firstly you'll need to download the missing DLL here. Then place this DLL file in your installation directory (Usually "C:\Program Files\LEGO Media\Games\Rock Raiders" ) or in your C:\Windows\System\System32 folder. Game