Today, I have spent lot of time to figure out the issue calling a business rules from an orchestration. When an orchestration is processing, the rules are triggered but the corresponding actions was not performed .

Finally we figureout that we are missing a registery enter to call a static methods from business rules. we followed the settings as listerd in the following microsoft document.
http://msdn.microsoft.com/en-us/library/aa950269%28v=bts.10%29.aspx