Fiddler Not Capturing Traffic from my C# Application in Windows 8

Fiddler Not Capturing Traffic from my C# Application in Windows 8

I have recently upgraded to a new computer with Windows 8. I have
installed Fiddler, yet I am having problems capturing traffic sent and
received from my C# application. I never had this issue on Windows 7, so I
assume its a Windows 8 issue.
The application is an ordinary WinForms application using C# 5.0 and .NET
4.5. I am using Visual Studio 2012.
Any ideas how to get around this as I'm having a hard time debugging my
application without it.
Fiddler captures traffic from Chrome and Firefox with no issues, just not
my application. I have also loaded another application that I developed,
and that works fine.
It may be worth noting that this is the first application I've developed
that uses HttpClient to make Http requests. Could that be causing any
issues?