Consider the following scenario:

• You use an application that is based on the Microsoft Windows Media Encoder SDK or the Windows Media Format SDK.
• The application uses a single process to create multiple encoder objects.

In this scenario, the encoder objects try to create multiple push publishing points on a Windows Media server.

After you upgrade from Microsoft Windows XP Service Pack 2 (SP2) to Windows Vista, the World Wide Web publishing service is unexpectedly turned on and started. This problem occurs even though this Microsoft Internet Information Services (IIS) component is not installed in Windows XP before the upgrade occurs.