diff --git a/PCbuild/BUILDno.txt b/PCbuild/BUILDno.txt
index 478e0d3eff2..9e5b97e98bf 100644
--- a/PCbuild/BUILDno.txt
+++ b/PCbuild/BUILDno.txt
@@ -33,8 +33,10 @@ How to change the Windows build number:
 
 Windows Python BUILD numbers
 ----------------------------
+  59    2.4.0c1
+        7-Nov-2004
   58    2.4.0b2
-        22-Nov-2004
+        2-Nov-2004
   57    2.4.0b1
         15-Oct-2004
   56    2.4.0a3
diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index e5be4cf0e00..1fcd8907d2b 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -1385,7 +1385,7 @@
 					Name="VCCLCompilerTool"
 					Optimization="2"
 					AdditionalIncludeDirectories=""
-					PreprocessorDefinitions="BUILD=58"/>
+					PreprocessorDefinitions="BUILD=59"/>
 			</FileConfiguration>
 			<FileConfiguration
 				Name="Debug|Win32">
@@ -1393,7 +1393,7 @@
 					Name="VCCLCompilerTool"
 					Optimization="0"
 					AdditionalIncludeDirectories=""
-					PreprocessorDefinitions="BUILD=58"/>
+					PreprocessorDefinitions="BUILD=59"/>
 			</FileConfiguration>
 			<FileConfiguration
 				Name="ReleaseItanium|Win32">
@@ -1401,7 +1401,7 @@
 					Name="VCCLCompilerTool"
 					Optimization="2"
 					AdditionalIncludeDirectories=""
-					PreprocessorDefinitions="BUILD=58"/>
+					PreprocessorDefinitions="BUILD=59"/>
 			</FileConfiguration>
 		</File>
 		<File