diff --git a/EGkSbzFromCurves.h b/EGkSbzFromCurves.h
new file mode 100644
index 0000000..e6b1f08
--- /dev/null
+++ b/EGkSbzFromCurves.h
@@ -0,0 +1,50 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2024-2024
+//----------------------------------------------------------------------------
+// File : EGkSbzFromCurves.h   Data : 07.05.24       Versione : 2.6d2
+// Contenuto : Prototipi funzioni di creazione TriMesh a partire da curve.
+//
+//
+//
+// Modifiche : 07.05.24 DB Creazione modulo.
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkCurve.h"
+#include "/EgtDev/Include/EGkSurfFlatRegion.h"
+#include "/EgtDev/Include/EGkSurfTriMesh.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
+
+//----------------------------------------------------------------------------
+enum RS_CAP { RSCAP_NONE = 0, RSCAP_FLAT = 1, RSCAP_ROUND = 2, RSCAP_BEVEL = 3} ;
+
+//----------------------------------------------------------------------------
+EGK_EXPORT ISurfBezier* GetSurfBezierByFlatContour( const ICurve* pCurve, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierByRegion( const CICURVEPVECTOR& vpCurve, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierByExtrusion( const ICurve* pCurve, const Vector3d& vtExtr,
+   bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierByRegionExtrusion( const CICURVEPVECTOR& vpCurve, const Vector3d& vtExtr,
+   double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierByRevolve( const ICurve* pCurve, const Point3d& ptAx,
+   const Vector3d& vtAx, bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierByScrewing( const ICurve* pCurve, const Point3d& ptAx, const Vector3d& vtAx,
+   double dAngRotDeg, double dMove, bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierRectSwept( double dDimH, double dDimV, double dBevelH, double dBevelV,
+   const ICurve* pGuide, int nCapType, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierSwept( const ICurve* pSect, const ICurve* pGuide, const Vector3d& vtAx,
+   bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierSwept( const ISurfFlatRegion* pSfrSect, const ICurve* pGuide, const Vector3d& vtAx,
+   bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierTransSwept( const ICurve* pSect, const ICurve* pGuide, bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierRuled( const Point3d& ptP, const ICurve* pCurve, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfBezier* GetSurfBezierRuled( const ICurve* pCurve1, const ICurve* pCurve2, int nType, double dLinTol = 10 * EPS_SMALL) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 0861c2b..4f55d73 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -374,6 +374,8 @@ EXE_EXPORT int  ExeCreateSurfBezierRational( int nParentId, int nDegU, int nDegV
 EXE_EXPORT int  ExeCreateSurfBezierLeaves( int nParentId, int nSurfBzId, int nTextHeight = 50, bool bShowTrim = false, int* pnCount = nullptr) ;
 EXE_EXPORT int  ExeCreateBezierSphere( int nParentId, const Point3d& ptCenter, double dR, int nRefType) ;
 EXE_EXPORT int  ExeCreateSurfBezierTria2D( int nParentId, int nSurfBzId, int nTextHeight, bool bShowTrim, int* pnCount) ;
+EXE_EXPORT int  ExeCreateSurfBzByExtrusion( int nParentId, const INTVECTOR& vCrvIds, const Vector3d& vtExtr,
+                                            double dLinTol, int nRefType) ;
 
 // GeomDB Create Volume
 EXE_EXPORT int  ExeCreateVolZmap( int nParentId, const Point3d& ptIni, double dDimX,