diff --git a/API_General.cpp b/API_General.cpp
index 0af17b9..4c7fcb2 100644
--- a/API_General.cpp
+++ b/API_General.cpp
@@ -227,6 +227,15 @@ __stdcall EgtGetKeyLeftDays( int* pnLeftDays)
    return ( ExeGetKeyLeftDays( *pnLeftDays) ? TRUE : FALSE) ;
 }
 
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtGetKeyAssLeftDays( int* pnAssLeftDays)
+{
+   if ( pnAssLeftDays == nullptr)
+      return FALSE ;
+   return ( ExeGetKeyAssLeftDays( *pnAssLeftDays) ? TRUE : FALSE) ;
+}
+
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtGetKeyOptLeftDays( int* pnOptLeftDays)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index e815023..1c5e188 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ