At the end of my previous post I mentioned that I needed to download and install the WinFX SDK to run an Avalon sample app. After the downloading and starting the setup I ran into this error message:
After checking the digital signature of this file, it turns out that this signature cannot be verified:
because there is a problem with validating all the certificates in the certification path
I found some Usenet postings that indicate the same problem. And that's where it ends right now, because there is no solution available as of yet.