diff --git a/EGkSbzFromCurves.h b/EGkSbzFromCurves.h
index e6b1f08..df2395e 100644
--- a/EGkSbzFromCurves.h
+++ b/EGkSbzFromCurves.h
@@ -25,26 +25,26 @@
 #define EGK_EXPORT __declspec( dllimport)
 #endif
 
-//----------------------------------------------------------------------------
-enum RS_CAP { RSCAP_NONE = 0, RSCAP_FLAT = 1, RSCAP_ROUND = 2, RSCAP_BEVEL = 3} ;
+////----------------------------------------------------------------------------
+//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* 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) ;
+                                                   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/EGkSurfBezier.h b/EGkSurfBezier.h
index dec7b3f..21487f9 100644
--- a/EGkSurfBezier.h
+++ b/EGkSurfBezier.h
@@ -73,6 +73,9 @@ class __declspec( novtable) ISurfBezier : public ISurf
       virtual bool IncreaseUV( Point3d& ptUV, Vector3d vtH , Point3d* ptUVCopy, bool bModifyOrig) const = 0 ;
       virtual bool GetLoops( ICRVCOMPOPOVECTOR& vCC, bool bLineOrBezier, int nEdge = -1) const = 0 ;
       virtual bool IsPlanar( void) const = 0 ;
+      virtual bool CreateByFlatContour( const PolyLine& PL) = 0 ;
+      virtual bool CreateByRegion( const POLYLINEVECTOR& vPL) = 0 ;
+      virtual bool CreateByExtrusion( const ICurve* pCrv, const Vector3d& vtExtr, bool bDeg3OrDeg2 = false) = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 4f55d73..ea2f252 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -374,6 +374,7 @@ 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  ExeCreateSurfBzByFlatContour( int nParentId, int nCrvId, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfBzByExtrusion( int nParentId, const INTVECTOR& vCrvIds, const Vector3d& vtExtr,
                                             double dLinTol, int nRefType) ;