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Asked: 2026-05-11T01:07:42+00:00

I need to retrieve, in my Win32 standalone program, a list of currently installed

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I need to retrieve, in my Win32 standalone program, a list of currently installed Internet Explorer add-ons (Browser Helper Objects), and – if possible – their enabled/disabled status.

Since anti-spyware programs (or e.g. Autoruns) can get this list from somewhere, is there a simple way to request this list programatically?

EDIT: Thanks to @Stefan, who pointed me to the right registry keys (all HKLM):

// BHOs HKLM\Software\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects  // IE toolbars HKLM\Software\Microsoft\Internet Explorer\Toolbar // IE extensions HKLM\Software\Microsoft\Internet Explorer\Extensions
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  1. The BHOs are registered under

    HKLM\Software\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects

    IE toolbars are registered under

    HKLM\Software\Microsoft\Internet Explorer\Toolbar
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