diff --git a/API_Nesting.cpp b/API_Nesting.cpp
index cebd220..1e26cb8 100644
--- a/API_Nesting.cpp
+++ b/API_Nesting.cpp
@@ -123,6 +123,13 @@ __stdcall EgtCreateOutRegion( int nParentId, int nOutCrvId)
    return ( ExeCreateOutRegion( nParentId, nOutCrvId) ? TRUE : FALSE) ;
 }
 
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtCreateReferenceRegion( int nParentId, int nOutCrvId, BOOL bBottomUp)
+{
+   return ( ExeCreateReferenceRegion( nParentId, nOutCrvId, ( bBottomUp != FALSE)) ? TRUE : FALSE) ;
+}
+
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtCreateDamagedRegion( int nParentId, int nDmgCrvId)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index b34eb64..b8dd8cf 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ