OL98: Invalid Page Fault in Emalscan.dll

When you quit Outlook, you may receive one of the following error messages: When you start Outlook, you may receive the following error message:

You have installed McAfee's VirusScan, and there is a problem with the "Exchange Scan" add-in in Outlook.

Choose one of the following methods to correct the error.

Method 1

Obtain and install the service pack, v98sp402.zip, available from Network Associates, at the following address:

Method 2

To disable the Microsoft Exchange Scan add-in, follow these steps:

1. On the Tools menu, click Options.
2. On the Other tab, click Advanced Options.
3. Click Add-In Manager.
4. Click to clear the Exchange Scan check box, and then click OK three times to close all dialog boxes.
5. Quit Outlook, restart your computer, and then start Outlook. The error should not recur.

NOTE: These steps, while preventing the error, will disable the VirusScan functionality in Outlook. You should contact the McAfee VirsusScan manufacturer, Network Associates, Inc., for further troubleshooting. The WhatsNew.txt file, installed in
folder provides information about how to troubleshoot VirusScan problems and how to contact Network Associates, Inc. for technical support.

Method 3

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
Remove the Exchange Scan add-in from the registry. To modify the registry, follow these steps:

1. Close Outlook.
2. Click Start, click Run, and type regedit. Click OK.
3. Navigate to the following registry key:
   HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Client\Extensions
4. With the Exchange Scan data key selected in the right-hand pane of the Registry Editor, press DELETE.
5. Close the Registry Editor.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

For additional information about VirusScan and Outlook, please see the following article in the Microsoft Knowledge Base: