diff --git a/pep-0042.txt b/pep-0042.txt
index 1a818d8ef..9df018d66 100644
--- a/pep-0042.txt
+++ b/pep-0042.txt
@@ -61,6 +61,14 @@ Core Language / Builtins
       pickle lacks float('inf')
       http://sf.net/tracker/index.php?func=detail&aid=445484&group_id=5470&atid=355470
 
+    - Windows:  Trying to create (or even access) files with certain magic
+      names can hang or crash Windows systems.  This is really a bug in the
+      OSes, but some apps try to shield users from it.  When it happens,
+      the symptoms are very confusing.
+
+      Hang using files named prn.txt, etc
+      http://sf.net/tracker/index.php?func=detail&aid=481171&group_id=5470&atid=355470
+
 
 Standard Library