diff --git a/PCbuild/BUILDno.txt b/PCbuild/BUILDno.txt
index 97aca465533..478e0d3eff2 100644
--- a/PCbuild/BUILDno.txt
+++ b/PCbuild/BUILDno.txt
@@ -33,6 +33,8 @@ How to change the Windows build number:
Windows Python BUILD numbers
----------------------------
+ 58 2.4.0b2
+ 22-Nov-2004
57 2.4.0b1
15-Oct-2004
56 2.4.0a3
diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index d101b4f61ad..e5be4cf0e00 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -1385,7 +1385,7 @@
Name="VCCLCompilerTool"
Optimization="2"
AdditionalIncludeDirectories=""
- PreprocessorDefinitions="BUILD=57"/>
+ PreprocessorDefinitions="BUILD=58"/>
@@ -1393,7 +1393,7 @@
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories=""
- PreprocessorDefinitions="BUILD=57"/>
+ PreprocessorDefinitions="BUILD=58"/>
@@ -1401,7 +1401,7 @@
Name="VCCLCompilerTool"
Optimization="2"
AdditionalIncludeDirectories=""
- PreprocessorDefinitions="BUILD=57"/>
+ PreprocessorDefinitions="BUILD=58"/>