BHO is a simple ATL COM object that Internet Explorer will load each time it runs, i.e. for every instance of Internet Explorer. BHOs run in Internet Explorer’s address space and can perform any operations on available objects (windows, modules etc.). BHOs instantiates and gets destructed with browser’s instance as it is tied to a browser’s main window.



If your system has got active desktop enabled the BHO gets instantiated along with the windows explorer as well. To disable the BHO for windows explorer, you can add following code snippet to DllMain,

-BHO is a simple ATL COM object that Internet Explorer will load each time it runs, ie for every instance of Internet Explorer. BHOs run in Internet Explorer's address space and can perform any operations on available objects (windows, modules etc.). . BHOs instantiates and gets destructed with browser's instance as it is tied to a browser's main window. If your system has got active desktop enabled the BHO gets instantiated along with the windows explorer as well. To disable the BHO for windows explorer, you can add following code snippet to DllMain.