diff --git a/API_GdbGetCurve.cpp b/API_GdbGetCurve.cpp
index 8af69b1..b7d3442 100644
--- a/API_GdbGetCurve.cpp
+++ b/API_GdbGetCurve.cpp
@@ -33,6 +33,13 @@ __stdcall EgtCurveLength( int nId, double* pdLen)
    return ( ExeCurveLength( nId, pdLen) ? TRUE : FALSE) ;
 }
 
+//----------------------------------------------------------------------------
+BOOL
+__stdcall EgtCurveParamAtLength( int nId, double dLen, double* pdU)
+{
+   return ( ExeCurveParamAtLength( nId, dLen, pdU) ? TRUE : FALSE) ;
+}
+
 //----------------------------------------------------------------------------
 BOOL
 __stdcall EgtCurveLengthAtPoint( int nId, const double ptOn[3], double dExtend, double* pdLen)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index e65f1af..678078d 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ