Browser Helper Object

<p>A Browser Helper Object (BHO) is a <a href="/facts/Library_(computer_science)/xRzL3P7q">DLL</a> <a href="/facts/Module_(programming)/sNoqKvRD">module</a> designed as a <a href="/facts/Plug-in_(computing)/351Du3Wu">plugin</a> for the <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> <a href="/facts/Internet_Explorer/uL8a4Y5l">Internet Explorer</a> <a href="/facts/Web_browser/2pfyymLs">web browser</a> to provide added functionality. BHOs were introduced in October 1997 with the release of <a href="/facts/Internet_Explorer_4/ztoV77jR">version 4</a> of Internet Explorer. Most BHOs are loaded once by each new instance of Internet Explorer. However, in the case of <a href="/facts/Windows_Explorer/oQW5yNnJ">Windows Explorer</a>, a new instance is launched for each window.
</p><p>BHOs are still supported as of Windows 10, through <a href="/facts/Internet_Explorer_11/EjgV0YJe">Internet Explorer 11</a>, while BHOs are not supported in <a href="/facts/Microsoft_Edge_(series_of_web_browsers)/saavTq0q">Microsoft Edge</a>.
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Browser Helper Object open-in-new

Browser Helper Object