Add a warning so that it isn't forgotten to recreate the binaries AND
CHECK INTO CVS if these files are changed.
diff --git a/PC/bdist_wininst/archive.h b/PC/bdist_wininst/archive.h
index 977898c..35d2fd6 100644
--- a/PC/bdist_wininst/archive.h
+++ b/PC/bdist_wininst/archive.h
@@ -1,3 +1,12 @@
+/*
+  IMPORTANT NOTE: IF THIS FILE IS CHANGED, WININST-6.EXE MUST BE RECOMPILED
+  WITH THE MSVC6 WININST.DSW WORKSPACE FILE MANUALLY, AND WININST-7.1.EXE MUST
+  BE RECOMPILED WITH THE MSVC 2003.NET WININST-7.1.VCPROJ FILE MANUALLY.
+
+  IF CHANGES TO THIS FILE ARE CHECKED INTO PYTHON CVS, THE RECOMPILED BINARIES
+  MUST BE CHECKED IN AS WELL!
+*/
+
 #pragma pack(1)
 
 /* zip-archive headers