Update master Windows build-number list for 2.2.1c2.
diff --git a/PCbuild/BUILDno.txt b/PCbuild/BUILDno.txt
index 2af38d9..98f1495 100644
--- a/PCbuild/BUILDno.txt
+++ b/PCbuild/BUILDno.txt
@@ -33,6 +33,8 @@
 
 Windows Python BUILD numbers
 ----------------------------
+  33    2.2.1c2
+        26-Mar-2002
   32    2.2.1c1
         18-Mar-2002
   31    2.1.2 final