Consider the following scenario:

• You install security update 916281 on a Microsoft Windows XP-based computer.
• On the computer, you use Microsoft Internet Explorer 6 to access a Web-based software program.
• This software program was created by using Microsoft ASP.NET. Also, this software program uses the SmartNavigation feature.

In this scenario, the software program cannot import an external style sheet. This problem occurs only after you install security update 916281.

Note: Security update 916281 is described in security bulletin MS06-021.

For more information about security bulletin MS06-021, click the following article number to view the article in the Microsoft Knowledge Base:
916281 MS06-021: Cumulative security update for Internet Explorer