Question

Is there a way for a standard C# desktop app to detect the URL that the browser is going to navigate to, and possibly prevent it from doing that? An example would be all those download managers that pop up when I click a link in the browser and prevent browser’s default action from occurring.

Answer 1

you can not access to internet browsers from winform projects but
you can access if you have a plug-in app. for browsers.
Develop a plug-in app. and communicate with your winform app. like internet download manager app.
here is expamle for IE add-ons
IE add-on express
for chrome
Google dev guide

hopefully helps it.