OL2000: Error Message "Out of memory. Close some windows or programs and try again."

When you attempt to open an encrypted message, you may receive the following error message: NOTE: Microsoft Office 2000 has built-in functionality that enables you to get more information about difficult-to-troubleshoot alerts or error messages. If you want to enable this functionality for this and other error messages in Microsoft Office 2000, please download the Microsoft Office 2000 Customizable Alerts file from the Microsoft Office Update Web site at the following address: NOTE: If you reached this article by clicking the Web Info button in an error message, you already have Customizable Alerts enabled.

This error message occurs for the following reason. View the "What to Try" section for the resolution that applies to your situation:

Some elements of Microsoft Outlook Express are absent from your computer.

Outlook Express Absent

If you downgraded from Microsoft Internet Explorer version 5.0 to an earlier version, some necessary elements of Outlook Express may have been removed from your computer.

To correct this problem, follow these steps:

1. Click Start, point to Settings, and click Control Panel.
2. In Control Panel, double-click Add/Remove Programs.
3. Click to select Microsoft Office 2000, and then click Add/Remove.
4. When prompted, click Repair Office.