diff --git a/API_Nesting.cpp b/API_Nesting.cpp
index b8321d1..df8e14c 100644
--- a/API_Nesting.cpp
+++ b/API_Nesting.cpp
@@ -355,7 +355,7 @@ __stdcall EgtGetPartClusterCenterGlob( int nId[], int nCount, double ptCen[3])
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtAutomaticPackParts( int nId[], int nCount, BOOL bMinimizeOnXvsY, BOOL bReducedCut, int nMaxTime)
+__stdcall EgtAutomaticPackParts( int nId[], int nCount, BOOL bMinimizeOnXvsY, BOOL bReducedCut, BOOL bGuillotineMode, int nMaxTime)
 {
   // verifico
    if ( nId == nullptr  ||  nCount <= 0)
@@ -366,7 +366,7 @@ __stdcall EgtAutomaticPackParts( int nId[], int nCount, BOOL bMinimizeOnXvsY, BO
    for ( int i = 0 ; i < nCount ; ++ i)
       vIds[i] = nId[i] ;
   // eseguo 
-   bool bOk = ExeAutomaticPackParts( vIds, ( bMinimizeOnXvsY != FALSE), ( bReducedCut != FALSE), nMaxTime) ;
+   bool bOk = ExeAutomaticPackParts( vIds, ( bMinimizeOnXvsY != FALSE), ( bReducedCut != FALSE), ( bGuillotineMode != FALSE), nMaxTime) ;
   // aggiorno il vettore
    for ( int i = 0 ; i < nCount ; ++ i)
       nId[i] = vIds[i] ;
diff --git a/EgtInterface.rc b/EgtInterface.rc
index 099ffec..62fbc3e 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ