A couple of people posted comments to my last post suggesting that I use Fiddler to see what's happening in the HTTP request. Fiddler was exactly the tool whose name I couldn't remember. Fiddler essentially sets up a local HTTP proxy server and reconfigures your Internet Explorer proxy settings.

When I launched Fiddler, BlogJet worked. When I closed Fiddler, BlogJet didn't work.

"What the hell is going on here?" I thought.

Here is what I think happened...

Fiddler replaced my proxy settings, but didn't itself pass requests on to our internal proxy server. So when I had Fiddler running, I wasn't going through the MS Corpnet proxy servers. And BlogJet worked. When I closed Fiddler, it put my proxy settings back the way they were and BlogJet stopped working.

So I went into BlogJet and told it to use a "Custom Proxy Configuration" and then left the actual config entries blank.

And it worked. Strange, but it worked.