diff --git a/ansicon.c b/ansicon.c
index ccdfeca..89a99a1 100644
--- a/ansicon.c
+++ b/ansicon.c
@@ -73,9 +73,12 @@
   v1.62, 18 July, 2013:
     write the bits to the log;
     test if creating the registry key fails (HKLM requires admin privileges).
+
+  v1.63, 25 July, 2013:
+    don't write the reset sequence if output is redirected.
 */
 
-#define PDATE L"18 July, 2013"
+#define PDATE L"25 July, 2013"
 
 #include "ansicon.h"
 #include "version.h"
@@ -236,7 +239,8 @@ int main( void )
   // worry about ANSICON_GUI.
   if (installed)
   {
-    fputws( L"\33[m", stdout );
+    if (_isatty( 1 ))
+      fputws( L"\33[m", stdout );
     FreeLibrary( GetModuleHandle( ANSIDLL ) );
   }
 
diff --git a/readme.txt b/readme.txt
index e387721..54c93b2 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@
 
 			 Copyright 2005-2013 Jason Hood
 
-			    Version 1.62.  Freeware
+			    Version 1.63.  Freeware
 
 
 Description
@@ -270,6 +270,10 @@ Version History
 
     Legend: + added, - bug-fixed, * changed.
 
+    1.63 - 25 July, 2013:
+    - don't write the reset sequence (when it's already installed) if output is
+      redirected.
+
     1.62 - 18 July, 2013:
     - indicate if opening HKLM failed;
     * removed ANSI-LLW.exe again, properly this time;
@@ -446,4 +450,4 @@ Distribution
 
 
 ==========================
-Jason Hood, 18 July, 2013.
+Jason Hood, 25 July, 2013.
diff --git a/version.h b/version.h
index 38c668e..0f5c5a9 100644
--- a/version.h
+++ b/version.h
@@ -2,11 +2,11 @@
   version.h - Version defines.
 */
 
-#define PVERS	L"1.62"         // wide string
-#define PVERSA	 "1.62"         // ANSI string (windres 2.16.91 didn't like L)
-#define PVERE	L"162"          // wide environment string
-#define PVEREA	 "162"          // ANSI environment string
-#define PVERB	1,6,2,0 	// binary (resource)
+#define PVERS	L"1.63"         // wide string
+#define PVERSA	 "1.63"         // ANSI string (windres 2.16.91 didn't like L)
+#define PVERE	L"163"          // wide environment string
+#define PVEREA	 "163"          // ANSI environment string
+#define PVERB	1,6,3,0 	// binary (resource)
 
 #ifdef _WIN64
 # define BITS L"64"