Hello All, I am new to PassthruAPP & COM,ATL. I have run PassthruAPP & it gives a separate window where we type the URL to be navigated & then we get the page. I want to integrate PassthruAPP with the Internet Explorer. But have no idea about doing it. What I maen by interating with IE is that -- 1. User types the URL in IE & internally the request should go through PassthruAPP. I want to measure the time taken by all the images, html, scripts files within a web page to be downloaded. Where (in which file & in which function) should I be noting down the time when http request started & finished ??? I donot want PassthruAPP as a separate application running -- I want it to monitor what IE is doing , i.e measuring the http request time for IE transactions. Can anyone provide some sample code/guidance to get this issue solved. I have developed a sample BHO given in msdn "Building BHO with Visual Studio 2005". How can I use PassthruAPP in the BHO to achieve these results ?? Please help--- Thanking You & awaiting your reply Hitesh.