Zeropopupbar, also known as Tellafriend.Trojan and Tellafriend, changes your Home and Search Page. From the EULA: "Each time you run the SOFTWARE PRODUCT you agree to have your IE search page and/or HomePage set to our search engine, for the purpose of performing a web search."

Some versions has been reported to automatically send emails to all contacts in the Windows Address Book and Eudora Address Book [1] [2].


Trojan Horse Adware


ZeroPopUpBar  ZeroPopUpBar.zp 



If you have any of the files related to Zeropopupbar on your system, please send them for additional analysis. Generally, I have only analysed a few versions for each software component listed at this web site. With your help I will be able to look at both old and more recent versions of the Zeropopupbar software. Thank you very much for your time!


Privacy policy

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Bazooka Adware and Spyware Scanner detects Zeropopupbar. Bazooka is freeware and detects spyware, adware, foistware, trojan horses, viruses, worms and other potentially unwanted applications. Read more »

Uninstall Zeropopupbar with FreeFixer

I'm working on a general purpose tool for removing unwanted software. The tool is called FreeFixer and can help you remove unwanted Browser Helper Objects, Internet Explorer toolbars and software that starts automatically when you reboot your computer, so it can offer some assistance while uninstalling Zeropopupbar. The manual removal instructions listed below will help you to identify what to delete with FreeFixer.

Read more about FreeFixer.

Manual removal

Please follow the instructions below if you would like to remove Zeropopupbar manually. Please notice that you must follow the instructions very carefully and delete everything that is mentioned. In most cases the removal will fail if one single item is not deleted. If Zeropopupbar remains on your system after stepping through the removal instructions, please double-check by stepping through them again.

  1. Start the registry editor. This is done by clicking Start then Run. (The Run dialog will appear.) Type regedit and click OK. (The registry editor will open.)
  2. Delete 'HKEY_LOCAL_MACHINE \ SOFTWARE \ Classes \ CLSID \ {72A58725-2635-4725-8C53-676DFD1FEB8D}', if it exists.
  3. Browse to the key:
    'HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Internet Explorer \ Toolbar'
  4. In the right pane, delete the value called {72A58725-2635-4725-8C53-676DFD1FEB8D}, if it exists.
  5. Browse to the key:
    'HKEY_CURRENT_USER \ SOFTWARE \ Microsoft \ Internet Explorer \ Toolbar \ WebBrowser'
  6. In the right pane, delete the value called {72A58725-2635-4725-8C53-676DFD1FEB8D}, if it exists.
  7. Exit the registry editor.
  8. Restart your computer.
  9. Start Windows Explorer and delete:
    Note: %SystemDir% is a variable (?). By default, this is C:\Windows\System (Windows 95/98/Me), C:\WINNT\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Problems uninstalling? Click here.

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Contact information for Zeropopupbar's vendor

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Related links

Bazooka - Free scan for spyware, adware, trojan horses, keyloggers, etc. Detects more than 500 potentially unwanted applications. Freeware!

The File Database - Search the file database for more information. Free!

PopUp Blocker Test - Find out if your pop-up killer can handle all pop-ups. Free!

Kephyr Labs - Find out what is going on at Kephyr. Try products in an early stage of development.

Read more about FreeFixer, Kephyr's latest spyware removal tool.
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