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Tutorials | How to prevent Messenger popups

Publish date: 14:51 Wednesday, 14th September 2005
Written by: MishY
Audience intended for: Windows XP Users, Windows NT Users, Windows 2000 Users
Category: Cyber Safety

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The Messenger service is a system notification service designed for system administrators to notify Windows users about their networks using NET SEND. This should not be confused with MSN Messenger, or Windows Messenger as these are totally unrelated.

Example NET SEND popup

Advertisers have started using this service to send information about their products using mass-messaging software, and these messages could be used maliciously to distribute a virus. It was because of this issue that the Messenger service has been disabled by default in Windows XP Service Pack 2.

Who is affected ?How to prevent Messenger popups

This issue only affects Windows NT4, Windows 2000, and Windows XP users.

Windows XP UsersHow to prevent Messenger popups

To disable the Messenger service:

  1. Left click the start button, then click Control Panel. Then from the control panel double click the Administrative Tools icon.
  2. Then from the Administrative Tools window double click the Services icon.
  3. Scroll down the list of services until you find the service called "Messenger".

    Messenger Service

  4. Double click on the Messenger service icon to bring up the service properties window.
  5. From the dervice properties window left click the drop down box called Startup Type and change the startup type from Manual or Automatic to Disabled.

    Disabled Messenger Service

  6. Then click the Stop button. Whilst the Messenger service is stopping you will see a blue progress bar appear.
  7. Once the service has stopped and the progress bar has gone click Apply, then OK.

Windows 2000 UsersHow to prevent Messenger popups

  1. Left click the start button, then Settings, and then Control Panel. Then from the control panel double click the Administrative Tools icon.
  2. Then from the Administrative Tools window double click the Services icon.
  3. Scroll down the list of services until you find the service called "Messenger".
  4. Double click on the Messenger service icon to bring up the service properties window.
  5. From the dervice properties window left click the drop down box called Startup Type and change the startup type from Manual or Automatic to Disabled.
  6. Then click the Stop button. Whilst the Messenger service is stopping you will see a blue progress bar appear.
  7. Once the service has stopped and the progress bar has gone click Apply, then OK.

System AdministratorsHow to prevent Messenger popups

The Messenger service uses UDP ports 135, 137, and 138; TCP ports 135, 139, and 445; and an ephemeral (that is, short-lived) port number greater than 1024. If you have not already, block these ports on your firewall.

 

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If you have written a tutorial of your own and would like to have it here on Cyber Tech Help all you have to do is Submit your tutorial and it will be reviewed by the Administrator.