diff --git a/compat.c b/compat.c
index eef5fbb..5583804 100644
--- a/compat.c
+++ b/compat.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: compat.c,v 1.96 2015/07/28 23:20:42 djm Exp $ */
+/* $OpenBSD: compat.c,v 1.97 2015/08/19 23:21:42 djm Exp $ */
 /*
  * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl.  All rights reserved.
  *
@@ -176,6 +176,7 @@
 		  "PuTTY_Release_0.63*,"
 		  "PuTTY_Release_0.64*",
 					SSH_OLD_DHGEX },
+		{ "FuTTY*",		SSH_OLD_DHGEX }, /* Putty Fork */
 		{ "Probe-*",
 					SSH_BUG_PROBE },
 		{ "TeraTerm SSH*,"
@@ -189,7 +190,17 @@
 		  "TTSSH/2.70*,"
 		  "TTSSH/2.71*,"
 		  "TTSSH/2.72*",	SSH_BUG_HOSTKEYS },
-		{ "WinSCP*",		SSH_OLD_DHGEX },
+		{ "WinSCP_release_4*,"
+		  "WinSCP_release_5.0*,"
+		  "WinSCP_release_5.1*,"
+		  "WinSCP_release_5.5*,"
+		  "WinSCP_release_5.6*,"
+		  "WinSCP_release_5.7,"
+		  "WinSCP_release_5.7.1,"
+		  "WinSCP_release_5.7.2,"
+		  "WinSCP_release_5.7.3,"
+		  "WinSCP_release_5.7.4",
+					SSH_OLD_DHGEX },
 		{ NULL,			0 }
 	};