I just downloaded the brand new 4.3.0 WPF. When I extracted it I noticed the root directory was much smaller than previous builds, i.e. there are no per-spec dlls.
When I try to start it on Win7, I get the spinning circle for a few seconds than nothing further.
I downloaded and extracted twice with same results both times.
Anything I could be doing wrong on my end? I've had no trouble with many previous WPF builds.