diff --git a/windows/config.h.bor b/windows/config.h.bor
index 3ce32760..867be4f5 100644
--- a/windows/config.h.bor
+++ b/windows/config.h.bor
@@ -73,10 +73,15 @@
 #undef ENABLE_NLS
 
 /* Define if you want the FTP support for Opie compiled in.  */
-#define USE_OPIE 1
+#define ENABLE_OPIE 1
 
 /* Define if you want the HTTP Digest Authorization compiled in.  */
-#define USE_DIGEST 1
+#define ENABLE_DIGEST 1
+
+/* Define if you want the NTLM authorization support compiled in. */
+#ifdef HAVE_SSL
+# define ENABLE_NTLM
+#endif
 
 /* Define if you want the debug output support compiled in.  */
 #define ENABLE_DEBUG 1
diff --git a/windows/config.h.mingw b/windows/config.h.mingw
index d15e4625..cf7f92d7 100644
--- a/windows/config.h.mingw
+++ b/windows/config.h.mingw
@@ -80,10 +80,15 @@ so, delete this exception statement from your version.  */
 /* #undef HAVE_NLS */
 
 /* Define if you want the FTP support for Opie compiled in.  */
-#define USE_OPIE 1
+#define ENABLE_OPIE 1
+
+/* Define if you want the NTLM authorization support compiled in. */
+#ifdef HAVE_SSL
+# define ENABLE_NTLM
+#endif
 
 /* Define if you want the HTTP Digest Authorization compiled in.  */
-#define USE_DIGEST 1
+#define ENABLE_DIGEST 1
 
 /* Define if you want the debug output support compiled in.  */
 #define ENABLE_DEBUG 1
diff --git a/windows/config.h.ms b/windows/config.h.ms
index 56fe81f0..c00ef870 100644
--- a/windows/config.h.ms
+++ b/windows/config.h.ms
@@ -50,10 +50,15 @@
 #undef WORDS_BIGENDIAN
 
 /* Define if you want the FTP support for Opie compiled in.  */
-#define USE_OPIE 1
+#define ENABLE_OPIE 1
 
 /* Define if you want the HTTP Digest Authorization compiled in.  */
-#define USE_DIGEST 1
+#define ENABLE_DIGEST 1
+
+/* Define if you want the NTLM authorization support compiled in. */
+#ifdef HAVE_SSL
+# define ENABLE_NTLM
+#endif
 
 /* Define if you want the debug output support compiled in.  */
 #define ENABLE_DEBUG 1