diff --git a/EGkVector3d.h b/EGkVector3d.h
index 8de620e..fd173b5 100644
--- a/EGkVector3d.h
+++ b/EGkVector3d.h
@@ -80,6 +80,11 @@ class EGK_EXPORT Vector3d
       //! Verifica se il vettore è parallelo ed equiverso con Z-
       bool IsZminus( void) const
              { return ( fabs( x) < EPS_ZERO  &&  fabs( y) < EPS_ZERO  &&  z < - EPS_ZERO) ; }
+      //! Verifica se il vettore è generico
+      bool IsGeneric( void) const
+             { return (( fabs( x) > EPS_ZERO  &&  fabs( y) > EPS_ZERO)  ||
+                       ( fabs( y) > EPS_ZERO  &&  fabs( z) > EPS_ZERO)  ||
+                       ( fabs( z) > EPS_ZERO  &&  fabs( x) > EPS_ZERO)) ; }
       //! Somma sul posto con altro vettore
       Vector3d& operator +=( const Vector3d& vtV)
              { this->x += vtV.x ; this->y += vtV.y ; this->z += vtV.z ; return *this ; }
diff --git a/EInAPI.h b/EInAPI.h
index 18dfd82..c4f8dcf 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -621,12 +621,14 @@ EIN_EXPORT int  __stdcall EgtAddMachining( const wchar_t* wsName, const wchar_t*
 EIN_EXPORT int  __stdcall EgtCreateMachining( const wchar_t* wsName, int nMchType, const wchar_t* wsTool) ;
 EIN_EXPORT BOOL __stdcall EgtSetCurrMachining( int nId) ;
 EIN_EXPORT int  __stdcall EgtGetCurrMachining( void) ;
+EIN_EXPORT BOOL __stdcall EgtSetMachiningParamBool( int nType, BOOL bVal) ;
 EIN_EXPORT BOOL __stdcall EgtSetMachiningParamInt( int nType, int nVal) ;
 EIN_EXPORT BOOL __stdcall EgtSetMachiningParamDouble( int nType, double dVal) ;
 EIN_EXPORT BOOL __stdcall EgtSetMachiningParamString( int nType, const wchar_t* wsVal) ;
 EIN_EXPORT BOOL __stdcall EgtSetMachiningGeometry( int nNumId, const int nIds[], const int nSubs[]) ;
 EIN_EXPORT BOOL __stdcall EgtPreviewMachining( BOOL bRecalc) ;
 EIN_EXPORT BOOL __stdcall EgtApplyMachining( BOOL bRecalc) ;
+EIN_EXPORT BOOL __stdcall EgtGetMachiningParamBool( int nType, BOOL* pbVal) ;
 EIN_EXPORT BOOL __stdcall EgtGetMachiningParamInt( int nType, int* pnVal) ;
 EIN_EXPORT BOOL __stdcall EgtGetMachiningParamDouble( int nType, double* pdVal) ;
 EIN_EXPORT BOOL __stdcall EgtGetMachiningParamString( int nType, wchar_t*& wsVal) ;
diff --git a/EMkMachiningConst.h b/EMkMachiningConst.h
index 46ed736..c3e3587 100644
--- a/EMkMachiningConst.h
+++ b/EMkMachiningConst.h
@@ -175,7 +175,8 @@ enum { MILL_LI_NONE = 0,
        MILL_LI_LINEAR = 1,
        MILL_LI_TANGENT = 2,
        MILL_LI_GLIDE = 3,
-       MILL_LI_HELIX = 4} ;
+       MILL_LI_ZIGZAG = 4,
+       MILL_LI_HELIX = 5} ;
 // Tipo di uscita
 enum { MILL_LO_NONE = 0,
        MILL_LO_LINEAR = 1,