BHO has various meanings in the Explorer category. Discover the full forms, definitions, and usage contexts of BHO in Explorer.
A Browser Helper Object is a DLL module designed as a plugin for Microsoft's Internet Explorer web browser to provide added functionality. BHOs were introduced in October 1997 with the release of version 4 of Internet Explorer. Most BHOs are loaded once by each new instance of Internet Explorer. However, in the case of Windows Explorer, a new instance is launched for each window.
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