TailSpin is one of the demo applications from PDC09 that is up on Codeplex that demonstrates a lot of the .NET 4 feature set. I was trying to get it to run today on one of my laptops and it just wouldn’t get past the dependency check – Turns out I was dead in the water before I begun since I didn’t unblock the zip. So what I got when I tried to run the dependency check is the following error:
I found a lot of help around how to adjust my execution policy etc…but nothing seemed to help. Finally ran across a forum post somewhere suggesting the issue was unblocking the zip…I’m sure that “Blocking” has saved me from something terrible at some point but it sure does cause me problems at times! So if you download Tailspin to check it out, make sure you unblock it before you try to configure it – you can unblock it on the property page of the file as you see below.