The image explains it all. this is the whole reason why i uninstalled trainz. i didn't get the patch to update to service pack 3 once i re-installed it.
do i have to re-install it again? :/
Did you stop it or did it just fail to patch. Try again, if it fails re install.
If I remember right it's a long patch time that one, 2 hours or so. It seems to stop part way through but hasn't. Once the patching starts leave the computer alone until it's finished.