It doesn't work. But, it's probably user error. Both us of play. My laptop just finished and it's perfect and I'm tracking down mods. My hubby's desktop still gets the version error.
So I'm going to wipe everything out on his computer and go back to the very beginning.
Also, on my laptop - I didn't get the popup either. But the patcher still ran and worked just as it should.
The only other thing I can suggest is trying to run the installer as administrator, I personally am unsure what the issue can be at the moment