Added dxerr8 and dxerr9 libraries.

diff --git a/DEVELOPERS-HINTS b/DEVELOPERS-HINTS
index 82a2a33..9a9bbd8 100644
--- a/DEVELOPERS-HINTS
+++ b/DEVELOPERS-HINTS
@@ -190,6 +190,8 @@
 Support programs, libraries, etc:
 ---------------------------------
 
+	dlls/dxerr8/		- DirectX 8 error import lib
+	dlls/dxerr9/		- DirectX 9 error import lib
 	dlls/dxguid/		- DirectX UUID import lib
 	dlls/uuid/		- Windows-compatible UUID import lib
 	documentation/		- some documentation