It sounds like you're encountering compatibility issues with DirectX on your Windows Vista laptop when trying to install and run the game Dawn of War. Here are some steps you can take to try and resolve this issue: 1. Update DirectX: - First, make sure that you have the latest version of DirectX installed on your system. You can download and install the latest DirectX version from the official Microsoft website. 2. Install the Latest Visual C++ Redistributable: - Some games require specific versions of Visual C++ Redistributable packages to run properly. Make sure you have the necessary redistributable packages installed on your system. 3. Check System Requirements: - Ensure that your laptop meets the minimum system requirements specified by the game. Verify that your hardware components like the processor, memory, and graphics card are compatible with the game. 4. Compatibility Mode: - Try running the game in compatibility mode. Right-click on the game's executable file, go to Properties, and then navigate to the Compatibility tab. Here, you can set the compatibility mode to an earlier version of Windows like Windows XP. 5. Update Graphics Drivers: - Make sure your graphics drivers are up to date. Visit the website of your graphics card manufacturer (NVIDIA, AMD, Intel) to download and install the latest drivers for your specific graphics card model. 6. Repair the Game Installation: - If the game is partially installed or missing files, try repairing the installation. You can usually find this option in the game's installation directory or through the game launcher. 7. Check for Windows Updates: - Ensure that your Windows Vista operating system is up to date by checking for and installing any available Windows updates. Some updates may include patches or fixes that can help with game compatibility. 8. DirectX Diagnostic Tool: - Use the DirectX Diagnostic Tool to check for any issues with DirectX. You can run this tool by typing "dxdiag" in the Start menu search bar. Try these steps and see if they help resolve the issue with installing and running Dawn of War on your Windows Vista laptop. If you continue to experience problems, feel free to provide more details, and we can explore further solutions. Good luck, and I hope you can get the game up and running soon!