diff --git a/SystemInformation.cxx b/SystemInformation.cxx
index 936c1f71ba80f92912f97346848d4c7d698deafb..4818ce9a98351c4426a760d9de607d73dc66b1f7 100644
--- a/SystemInformation.cxx
+++ b/SystemInformation.cxx
@@ -3304,28 +3304,37 @@ bool SystemInformationImplementation::QueryOSInformation()
     {
     case VER_PLATFORM_WIN32_NT:
       // Test for the product.
-      if (osvi.dwMajorVersion <= 4) 
+      if (osvi.dwMajorVersion <= 4)
         {
         this->OSRelease = "NT";
         }
-      if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0) 
+      if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0)
         {
         this->OSRelease = "2000";
         }
-      if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1) 
+      if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1)
+        {
+        this->OSRelease = "XP";
+        }
+      // XP Professional x64
+      if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2)
         {
         this->OSRelease = "XP";
         }
 #ifdef VER_NT_WORKSTATION
       // Test for product type.
-      if (bOsVersionInfoEx) 
+      if (bOsVersionInfoEx)
         {
-        if (osvi.wProductType == VER_NT_WORKSTATION) 
+        if (osvi.wProductType == VER_NT_WORKSTATION)
           {
-          if (osvi.dwMajorVersion == 6) 
+          if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
             {
             this->OSRelease = "Vista";
             }
+          if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1)
+            {
+            this->OSRelease = "7";
+            }
 // VER_SUITE_PERSONAL may not be defined
 #ifdef VER_SUITE_PERSONAL
           else
diff --git a/kwsysDateStamp.cmake b/kwsysDateStamp.cmake
index 4b0fb0242bd0f913637e3ace411460eacfa91f8f..5ff8eec6f646da2c1e1d43fe17b24687f0494b16 100644
--- a/kwsysDateStamp.cmake
+++ b/kwsysDateStamp.cmake
@@ -15,7 +15,7 @@
 SET(KWSYS_DATE_STAMP_YEAR  2010)
 
 # KWSys version date month component.  Format is MM.
-SET(KWSYS_DATE_STAMP_MONTH 09)
+SET(KWSYS_DATE_STAMP_MONTH 11)
 
 # KWSys version date day component.  Format is DD.
-SET(KWSYS_DATE_STAMP_DAY   10)
+SET(KWSYS_DATE_STAMP_DAY   09)