A few months ago I blogged about the Domain Event pattern. You can read more about it here.
Since this time, I have revised the pattern to incorporate .NET 4.0 features, specifically the Parallel Extensions (previously mentioned here)
You can download the revised framework here.
Included is a very basic demo application, so you get the idea. The output should look similar to this.

ITCompiler.Examples.DomainEvents.zip (23.95 kb)