diff --git a/API_MachMgr.cpp b/API_MachMgr.cpp
index 3d13725..7feeb1a 100644
--- a/API_MachMgr.cpp
+++ b/API_MachMgr.cpp
@@ -1552,7 +1552,7 @@ __stdcall EgtSimStop( void)
 }
 
 //-----------------------------------------------------------------------------
-// Generation
+// Generation & T&L estimation
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtGenerate( const wchar_t* wsCncFile, const wchar_t* wsInfo)
@@ -1560,6 +1560,13 @@ __stdcall EgtGenerate( const wchar_t* wsCncFile, const wchar_t* wsInfo)
    return ( ExeGenerate( wstrztoA( wsCncFile), wstrztoA( wsInfo)) ? TRUE : FALSE) ;
 }
 
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtEstimate( const wchar_t* wsEstFile, const wchar_t* wsInfo)
+{
+   return ( ExeEstimate( wstrztoA( wsEstFile), wstrztoA( wsInfo)) ? TRUE : FALSE) ;
+}
+
 //-----------------------------------------------------------------------------
 // Machine
 //-----------------------------------------------------------------------------
diff --git a/EgtInterface.rc b/EgtInterface.rc
index a372711..d538135 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ