diff --git a/API_Exchange.cpp b/API_Exchange.cpp
index ee22f0c..7c81aef 100644
--- a/API_Exchange.cpp
+++ b/API_Exchange.cpp
@@ -27,6 +27,13 @@ __stdcall EgtGetFileType( const wchar_t* wsFilePath)
    return ExeGetFileType( wstrztoA( wsFilePath)) ;
 }
 
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtSetBtlAuxDir( const wchar_t* wsBtlAuxDir)
+{
+   return ( ExeSetBtlAuxDir( wstrztoA( wsBtlAuxDir)) ? TRUE : FALSE) ;
+}
+
 //-----------------------------------------------------------------------------
 BOOL
 __stdcall EgtImportBtl( const wchar_t* wsFilePath, int nFlag)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index d39ff5c..a49b0d6 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ