DecisioningDecision Platform Developer GuideApplication Integration with InRuleCalling InRule from BizTalk ServerCalling InRule from BizTalk Server Calling InRule from BizTalk Server irAdapter for BizTalk Server provides three ways to interact with an InRule installation: Calling InRule from a BizTalk Orchestration irAdapter for BizTalk Server Static .NET methods that may be called from BizTalk Message Assignment shapes