Username/password checks out, the hairpin fix message happens, then a black window opens in the back. It attempt to find the MSI, but I know i'm supposed to ignore that, so I close it. Immediately after a Windows Installer window appears and attempts to install something, but it never moves or responds and I believe it never does anything at all so i'm stuck. Did I misstep?

It's run as administrator, VS is installed.

EDIT: I was debating deleting this but I think the world should know of my idiocy.

I accidentally had a copy of PlayOnline Viewer installed and that stopped the game. Deleting it removed the problem.

Sorry for the bother!