diff --git a/EGkProjectCurveSurfBez.h b/EGkProjectCurveSurfBez.h
new file mode 100644
index 0000000..67556fd
--- /dev/null
+++ b/EGkProjectCurveSurfBez.h
@@ -0,0 +1,37 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2024-2024
+//----------------------------------------------------------------------------
+// File : EGkProjectCurveSurfTm.h     Data : 07.05.24      Versione : 2.6e3
+// Contenuto : Dichiarazione funzioni proiezione curve su superficie Bezier.
+//
+//
+//
+// Modifiche : 07.05.24 DB Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkGeoPoint3d.h"
+#include "/EgtDev/Include/EGkCurve.h"
+#include "/EgtDev/Include/EGkSurfBezier.h"
+
+//----------------------- Macro per import/export ----------------------------
+#undef EGK_EXPORT
+#if defined( I_AM_EGK)            // da definirsi solo nella DLL
+#define EGK_EXPORT __declspec( dllexport)
+#else
+#define EGK_EXPORT __declspec( dllimport)
+#endif
+
+//----------------------------------------------------------------------------
+// Proiezione di una curva su una superficie TriMesh lungo la direzione data.
+EGK_EXPORT bool ProjectCurveOnSurfBez( const ICurve& crCrv, const ISurfBezier& surfBez, const Vector3d& vtDir,
+   double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
+EGK_EXPORT bool ProjectCurveOnSurfBez( const ICurve& crCrv, const ISurfBezier& surfBez, const IGeoPoint3d& gpRef,
+   double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
+EGK_EXPORT bool ProjectCurveOnSurfBez( const ICurve& crCrv, const ISurfBezier& surfBez, const ICurve& crRef,
+   double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
+EGK_EXPORT bool ProjectCurveOnSurfBez( const ICurve& crCrv, const ISurfBezier& surfBez, const ISurfTriMesh& tmRef,
+   double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index fb3524f..5a1b876 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -609,6 +609,10 @@ EXE_EXPORT bool ExeProjectCurveOnSurfTm( int nCurveId, int nSurfTmId, const Vect
                                          double dLinTol, double dMaxSegmLen, int nRefType) ;
 EXE_EXPORT bool ExeProjectCurveOnSurfTmExt( int nCurveId, int nSurfTmId, int nGuideId, int nDestGrpId,
                                             double dLinTol, double dMaxSegmLen, bool bDirFromGuide) ;
+EXE_EXPORT bool ExeProjectCurveOnSurfBz( int nCurveId, int nSurfBzId, const Vector3d& vtDir, int nDestGrpId,
+                                         double dLinTol, double dMaxSegmLen, int nRefType) ;
+EXE_EXPORT bool ExeProjectCurveOnSurfBzExt( int nCurveId, int nSurfBzId, int nGuideId, int nDestGrpId,
+                                            double dLinTol, double dMaxSegmLen, bool bDirFromGuide) ;
 EXE_EXPORT int  ExeCurveGetVoronoi( int nId, int nDestGrpId, int nBound, int* pnCount) ;
 EXE_EXPORT int  ExeCurveGetMedialAxis( int nId, int nDestGrpId, int nSide, int* pnCount) ;
 EXE_EXPORT int  ExeCurveGetFatCurve( int nId, int nDestGrpId, double dRad, bool bSquareEnds, bool bSquareMids, int* pnCount) ;