Function CreateSession( _
   ByVal requestHeader As RequestHeader, _
   ByVal clientDescription As ApplicationDescription, _
   ByVal serverUri As String, _
   ByVal endpointUrl As String, _
   ByVal sessionName As String, _
   ByVal clientNonce() As Byte, _
   ByVal clientCertificate() As Byte, _
   ByVal requestedSessionTimeout As Double, _
   ByVal maxResponseMessageSize As UInteger, _
   ByRef sessionId As NodeId, _
   ByRef authenticationToken As NodeId, _
   ByRef revisedSessionTimeout As Double, _
   ByRef serverNonce As Byte(), _
   ByRef serverCertificate As Byte(), _
   ByRef serverEndpoints As EndpointDescriptionCollection, _
   ByRef serverSoftwareCertificates As SignedSoftwareCertificateCollection, _
   ByRef serverSignature As SignatureData, _
   ByRef maxRequestMessageSize As UInteger _
) As ResponseHeader

ResponseHeader CreateSession( 
   RequestHeader requestHeader,
   ApplicationDescription clientDescription,
   string serverUri,
   string endpointUrl,
   string sessionName,
   byte[] clientNonce,
   byte[] clientCertificate,
   double requestedSessionTimeout,
   uint maxResponseMessageSize,
   out NodeId sessionId,
   out NodeId authenticationToken,
   out double revisedSessionTimeout,
   out byte[] serverNonce,
   out byte[] serverCertificate,
   out EndpointDescriptionCollection serverEndpoints,
   out SignedSoftwareCertificateCollection serverSoftwareCertificates,
   out SignatureData serverSignature,
   out uint maxRequestMessageSize
)