What are MISSION.INI Error Messages?

General MISSION.INI Runtime Errors

MISSION.INI file errors often occur during the startup phase of Command & Conquer: Tiberian Sun, but can also occur while the program is running. These types INI errors are also known as “runtime errors” because they occur while Command & Conquer: Tiberian Sun is running. Here are some of the most common MISSION.INI runtime errors:

• MISSION.INI could not be found.
• MISSION.INI error.
• MISSION.INI failed to load.
• Error loading MISSION.INI.
• Failed to register MISSION.INI / Cannot register MISSION.INI.
• Runtime Error - MISSION.INI.
• The file MISSION.INI is missing or corrupt.

Most INI errors are due to missing or corrupt files. Your MISSION.INI file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Command & Conquer: Tiberian Sun), or deleted by a malware infection. Furthermore, MISSION.INI file corruption could be caused from a power outage when loading Command & Conquer: Tiberian Sun, system crash while loading or saving MISSION.INI, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix MISSION.INI Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your MISSION.INI issue. These troubleshooting steps are listed in the recommended order of execution.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. When you see the search box, type "System Restore" and press "ENTER".
3. In the search results, find and click System Restore.
4. Please enter the administrator password (if applicable / prompted).
5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
6. Restore your computer to that backup image.

If the Step 1 fails to resolve the MISSION.INI error, please proceed to the Step 2 below.

You can uninstall Command & Conquer: Tiberian Sun software by following these instructions (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. In the search box, type "Uninstall" and press "ENTER".
3. In the search results, find and click "Add or Remove Programs"
4. Find the entry for Command & Conquer: Tiberian Sun demo and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Command & Conquer: Tiberian Sun software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Command & Conquer: Tiberian Sun demo

Electronic Arts

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many MISSION.INI error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

1. Hit the Windows Start button
2. In the search box, type "Update" and press "ENTER".
3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
4. If updates are available for download, click "Install Updates".
5. After the update is completed, restart your PC.

If Windows Update failed to resolve the MISSION.INI error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your MISSION.INI File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate MISSION.INI file version. We maintain a comprehensive database of 100% malware-free MISSION.INI files for every applicable version of Command & Conquer: Tiberian Sun. Please follow the steps below to download and properly replace you file:

1. Locate your Windows operating system version in the list of below "Download MISSION.INI Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate Command & Conquer: Tiberian Sun folder location:
   
   Windows 10: C:\Westwood\TS Demo\
   
4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

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