Trying to execute BTAHL7ReceivePipeline in an orchestration

Hi All: 

I am trying to call the BTAHL7ReceivePipeline inside an orchestration 
to create and HL7 message from a string variable with the content of 
an HL7 file. 


I am trying to make this: 


HL7Request = string; 


BTAHL7ReceivePipeline = 
Microsoft.XLANGs.Pipeline.XLANGPipelineManager.ExecuteReceivePipeline(typeo­f(BTAHL72XPipelines.BTAHL72XReceivePipeline),

HL7Request); 


HL7Request2.MSHSegment = new System.Xml.XmlDo***ent(); 
HL7Request2.BodySegments = new System.Xml.XmlDo***ent(); 
HL7Request2.ZSegments = new System.Xml.XmlDo***ent(); 
BTAHL7ReceivePipeline.MoveNext(); 
BTAHL7ReceivePipeline.GetCurrent(HL7Request2); 


Where ’string’ represents the HL7 content, ‘HL7Request’ is a 
System.String message and ‘HL7Request2′ is a BTAHL7 message. 


When i try to make this, it gives me the following error: 


“Message has an invalid header, it could be due to error in 1st/2nd 
field or the segment name is neither MSH nor FHS 
” 


I have checked the hl7 content and is ok, it seems that the pipeline 
is not receiving the content correctly and it fails, i don´t know how 
to make this work… 


Does anyone have any idea?