Index: /ProjectEditor/SubOperation.cpp
===================================================================
--- /ProjectEditor/SubOperation.cpp	(revision 38)
+++ /ProjectEditor/SubOperation.cpp	(revision 39)
@@ -420,4 +420,6 @@
 		if(lstrcmpi(str,"Beep")==0) return COM_BEEP;
 		if(lstrcmpi(str,"Boolean")==0) return -1;
+		if(lstrcmpi(str,"ByRef")==0) return -1;
+		if(lstrcmpi(str,"ByVal")==0) return -1;
 		if(lstrcmpi(str,"Byte")==0) return -1;
 	}