Updating browser displays
The Dy Fu CA spyware even replaces Internet Explorer's general error page with an ad page.
In response to the problems associated with BHOs and similar extensions to Internet Explorer, Microsoft debuted an Add-on Manager in Internet Explorer 6 with the release of Service Pack 2 for Windows XP (updating it to IE6 Security Version 1, a.k.a. This utility displays a list of all installed BHOs, browser extensions and Active X controls, and allows the user to enable or disable them at will.
Each time a new instance of Internet Explorer starts, it checks the Windows Registry for the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version\Explorer\Browser Helper Objects.
e Bay no longer supports active content in listing descriptions.
However, if any of the following tags are still present in listings and don't use secure HTTPS URLs, they may cause issues for Chrome users.
A Browser Helper Object (BHO) 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.