I'm troubleshooting an application that is unable to make web requests to a known good URL from one user's Windows 7 machine. The application works fine on other users' Windows 7 PCs, and the URL can be successfully reached from a web browser (Chrome) on said user's machine. For those that care, the application fails with the following System.Net.WebException: "The underlying connection was closed: An unexpected error occurred on a send."
I suspect that the application is failing since some process (probably a third party firewall) installed on his machine is preventing outbound HTTP connections from EXEs that aren't whitelisted. (And, yes, I already tried disabling the built-in Windows firewall.) Is there a utility that I can use to monitor outbound HTTP connection attempts to see if there is a process blocking them?