Combat Flight Simulator: Error Message: CFSx Has Caused an Invalid Page Fault in Module CFSx.exe (307579)


The information in this article applies to:

  • Microsoft Combat Flight Simulator 2: WWII Pacific Theater
  • Microsoft Combat Flight Simulator 3: Battle for Europe
This article was previously published under Q307579

SYMPTOMS

When you attempt to start Microsoft Combat Flight Simulator, you may receive an error message similar to the following:
CFSx has caused an invalid page fault in module CFSx.exe

CAUSE

This behavior can occur if DirectX files installed on your computer are mismatched or the wrong version.

RESOLUTION

To resolve this issue, follow these steps:
  1. Browse to the following Microsoft Web site:

    http://www.microsoft.com/directx/homeuser/downloads/default.asp

  2. Click the link appropriate to your operating system, and then click the DirectX link underneath Download Now.
  3. Click Save this program to disk to copy the download to your computer for installation at a later time, note the name and location of the file, and then click OK.
  4. Restart Windows in Safe mode. To do this, use one of the following methods, as appropriate to your version of Windows.

    Microsoft Windows 95

    Restart the computer. When you see the "Starting Windows 95" message, press the F8 key. On the Startup menu, select Safe Mode, and then press ENTER.

    Microsoft Windows 98 and Microsoft Windows Millennium Edition (Me)

    Restart the computer. When the computer completes the Power On Self-Test (POST), press and hold down the CTRL key until you see the Startup menu. On the Startup menu, select Safe Mode, and then press ENTER.

    Microsoft Windows 2000

    Restart your computer, and when the Boot menu appears, press F8. When the Windows 2000 Advanced Options menu appears, select an option, and then press ENTER. When the Boot menu appears again with the words "Safe Mode" displayed in red at the bottom, select the installation that you want to start, and then press ENTER.

    WARNING: Do not select a Microsoft Windows NT 4.0 installation.
  5. Run the DirectX setup program from the location noted in step 3. Follow the steps to complete the installation of DirectX.
  6. Restart the computer in normal mode.

MORE INFORMATION

DirectX is a Windows component that improves access to hardware. Games use DirectX to communicate with your hardware. For more information about DirectX, browse to the following Microsoft Web site:

http://www.microsoft.com/directx/homeuser/aboutdx.asp

For additional information about Windows NT 4.0 and DirectX, click the article number below to view the article in the Microsoft Knowledge Base:

179113 How to Download and Install DirectX

Modification Type:MinorLast Reviewed:1/7/2006
Keywords:kberrmsg kbprb KB307579
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