diff --git a/src/config/NTMakefile.amd64_w2k b/src/config/NTMakefile.amd64_w2k
index 9a6945c59c..bd6d00f0fe 100644
--- a/src/config/NTMakefile.amd64_w2k
+++ b/src/config/NTMakefile.amd64_w2k
@@ -80,7 +80,7 @@ LIB = $(AFSDEV_LIB)
 #define used in WinNT/2000 installation and program version display
 AFSPRODUCT_VER_MAJOR=1
 AFSPRODUCT_VER_MINOR=3
-AFSPRODUCT_VER_PATCH=8500
+AFSPRODUCT_VER_PATCH=8600
 AFSPRODUCT_VER_BUILD=0
 
 # For MSI installer, each major release should have a different GUID
diff --git a/src/config/NTMakefile.i386_nt40 b/src/config/NTMakefile.i386_nt40
index 9656f3afbb..2386bd5e6d 100644
--- a/src/config/NTMakefile.i386_nt40
+++ b/src/config/NTMakefile.i386_nt40
@@ -80,7 +80,7 @@ LIB = $(AFSDEV_LIB)
 #define used in WinNT/2000 installation and program version display
 AFSPRODUCT_VER_MAJOR=1
 AFSPRODUCT_VER_MINOR=3
-AFSPRODUCT_VER_PATCH=8500
+AFSPRODUCT_VER_PATCH=8600
 AFSPRODUCT_VER_BUILD=0
 
 # For MSI installer, each major release should have a different GUID
diff --git a/src/config/NTMakefile.i386_w2k b/src/config/NTMakefile.i386_w2k
index cade0d0a04..a9fe7b6453 100644
--- a/src/config/NTMakefile.i386_w2k
+++ b/src/config/NTMakefile.i386_w2k
@@ -80,7 +80,7 @@ LIB = $(AFSDEV_LIB)
 #define used in WinNT/2000 installation and program version display
 AFSPRODUCT_VER_MAJOR=1
 AFSPRODUCT_VER_MINOR=3
-AFSPRODUCT_VER_PATCH=8500
+AFSPRODUCT_VER_PATCH=8600
 AFSPRODUCT_VER_BUILD=0
 
 # For MSI installer, each major release should have a different GUID