I am a developer and also use Visual Studio 2010 and Avast. Since the update on March 9th, 2012 I have had problems.
I experience random IE 9 “Cannot display webpage” This is unrelated to Visual Studio. However, I can reproduce this error by simply setting a debug point in any of my web applications, run the application, hit the debug stop point, then tell the application to resume. In short, I cannot resume from a debugging session.
I know it is related to Avast as when I disable all the shields, I can debug normally. When I enable all the shields, I cannot resume from a debug session. When I tried disabling the shields one-at-a-time, I still got this error. Only when I completely disable all shields do I get normal behavior. Also this eliminates all other problems with IE 9 “Cannot display webpage.”
I would at least have someone acknowledge this is problem.
I also have VS2010 but no debugging problem so far. I didn’t have any web application to test though.
What is your OSes, avast’s version, your previous anti-virus?
I have the current version 7.0.1426 released in early March which when I started having this problem. You have to have web applications to debug. I have had Avast for years and the previous version was whaterver was previous to the current version.
Those steps didn’t change anything. You can create a simple web forms application. Add a text box to the default.aspx page. In the page load event add text to the text box. That is all you need to have a simple web application to test it this behavior.
Something very similar happened several years ago when I was running Zone Alarm. The also would not address this issue so I switched to Avast. Now it looks like I am shopping for a new anti-virus program.