Article ID: 843021 - View products that this article applies to.
Programs or services that use the Alerter service or the Messenger service in Microsoft Windows XP to communicate with the user do not work as expected after you install Windows XP Service Pack 2 (SP2).
This issue may occur because the Startup type options for the Alerter service and for the Messenger service in Windows XP SP2 are set to Disabled. Therefore, any programs or services that depend on either of these services will run as expected, but messages to communicate with the user will not be sent.
Note No other changes have been made to the Alerter service or to the Messenger service in Windows XP SP2.
To resolve this issue between the program or the service and the Alerter service or the Messenger service, use one of the following methods.
Method 1Revise the software program to use another method to communicate with the user. This allows the program to communicate with the user with enhanced security, without having to use the Alerter service or the Messenger service. This is the method that we recommend.
Method 2Allow the program to start the Alerter service or the Messenger service before the program uses either of these services. For more information about starting these services, see Windows Help. Also, see the "Using the Services Administrative Tool to Configure Services" topic in the "System Services for the Windows Server 2003 Family and Windows XP Operating Systems" article. To see this article, visit the following Microsoft Web site:
To work around this issue, follow these steps:
The Alerter service notifies selected users and computers of administrative alerts. If the service is stopped, programs that use administrative alerts will not receive them. If this service is disabled, any services that depend on it will not start.
The Messenger service transmits net send command messages and Alerter service messages between clients and servers. The Messenger service is not related to Windows Messenger. If the Messenger service is stopped, Alerter messages will not be transmitted. If the Messenger service is disabled, any services that depend on it will not start.