I installed Bitdefender Free AV web installer and Fiddler could not detect any connection made by it. To reproduce, download it from here (https://www.bitdefender.com/solutions/free/thank-you.html) , open Fiddler, and then install the downloaded exe. Check Fiddler and it will not be able to detect anything from the installer. If there is a way to solve this, please let me know. I'm using latest Fiddler in Windows 8.1 core 64-bit.