diff --git a/PCbuild/BUILDno.txt b/PCbuild/BUILDno.txt
index b0c65a3..fa8e51c 100644
--- a/PCbuild/BUILDno.txt
+++ b/PCbuild/BUILDno.txt
@@ -33,6 +33,8 @@
 
 Windows Python BUILD numbers
 ----------------------------
+  25    2.2b1
+        19-Oct-2001
   24    2.2a4
         28-Sep-2001
   23    2.2a3
diff --git a/PCbuild/pythoncore.dsp b/PCbuild/pythoncore.dsp
index e07cd32..e4e49ea 100644
--- a/PCbuild/pythoncore.dsp
+++ b/PCbuild/pythoncore.dsp
@@ -739,11 +739,11 @@
 
 !IF  "$(CFG)" == "pythoncore - Win32 Release"
 
-# ADD CPP /D BUILD=24
+# ADD CPP /D BUILD=25
 
 !ELSEIF  "$(CFG)" == "pythoncore - Win32 Debug"
 
-# ADD CPP /D BUILD=24
+# ADD CPP /D BUILD=25
 
 !ELSEIF  "$(CFG)" == "pythoncore - Win32 Alpha Debug"