BizTalk ESB: Exception Handling in Orchestration

here is how to use Exception Handling framework from Orchestration This post is about couple of errors that consumed lots of time to figure out when testing an implementation that uses ESB Exception Handling framework. in windows event log (BizTalk ESB Toolkit 2.1): Object reference not set to an instance of an object. Source: Microsoft.Practices.ESB.ExceptionHandling.PipelineComponents.ProcessFault …

BizTalk ESB Toolkit 2.1: Index (zero based) must be greater than or equal to …

After installation and configuration of ESB Toolkit 2.1, ESB Portal gives this error.  I tried to debug ESB.Portal solution but unfortunately Microsoft does not provide source code for BizTalk Operations Service and we are left with trying different options. The reason in this case was that BizTalk Operations Service Application Pool user should be member …