SF bug #131225: sys.winver is still '2.0' in python 2.1a2.

SF patch #103683: Alternative dll version resources.
Changes similar to the patch.  MarkH should review.
File version and Product version text strings now 2.1a2.
64-bit file and product version numbers are now
    PY_MAJOR_VERSION, PY_MINOR_VERSION, messy, PYTHON_API_VERSION
where
    messy = PY_MICRO_VERSION*1000 + PY_RELEASE_LEVEL*10 + PY_RELEASE_SERIAL
Updated company name to "Digital Creations 2".
Copyright now lists Guido; "C in a circle" symbol used instead of (C).
Comments added so this is less likely to get flubbed again, and
#if/#error guys added to trigger if the version number manipulations
above overflow.

Author: tim-one

Misc/ACKS

@@ -179,6 +179,7 @@ Nadav Horesh
 Ken Howard
 Brad Howes
 Chih-Hao Huang
+Lawrence Hudson
 Michael Hudson
 Jim Hugunin
 Greg Humphreys

PC/python_nt.rc

@@ -8,18 +8,42 @@
 #include "modsupport.h"
 #include "patchlevel.h"
 
-#define MS_DLL_ID "2.0"
-
-#define PYTHON_VERSION MS_DLL_ID "." PYTHON_API_STRING "\0"
+/* Across releases, change:
+ *    MS_DLL_ID if the minor version number changes.
+ *    PYTHON_DLL_NAME ditto.
+ */
+#define MS_DLL_ID "2.1"
 
 #ifndef PYTHON_DLL_NAME
-#define PYTHON_DLL_NAME "Python21.dll"
+#define PYTHON_DLL_NAME "python21.dll"
 #endif
 
+/* Nothing below this should need to be changed except for copyright
+ * notices and company name.
+ */
+
+/* e.g., 2.1a2
+ * PY_VERSION comes from patchevel.h
+ */
+#define PYTHON_VERSION PY_VERSION "\0"
+
+/* 64-bit version number as comma-separated list of 4 16-bit ints */
+#if PY_MICRO_VERSION > 64
+#   error "PY_MICRO_VERSION > 64"
+#endif
+#if PY_RELEASE_LEVEL > 99
+#   error "PY_RELEASE_LEVEL > 99"
+#endif
+#if PY_RELEASE_SERIAL > 9
+#   error "PY_RELEASE_SERIAL > 9"
+#endif
+#define FIELD3 (PY_MICRO_VERSION*1000 + PY_RELEASE_LEVEL*10 + PY_RELEASE_SERIAL)
+#define PYVERSION64 PY_MAJOR_VERSION, PY_MINOR_VERSION, FIELD3, PYTHON_API_VERSION
+
 // String Tables
 STRINGTABLE DISCARDABLE
 BEGIN
-	1000,	MS_DLL_ID
+    1000,   MS_DLL_ID
 END
 
 /////////////////////////////////////////////////////////////////////////////
@@ -28,8 +52,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,6,0,0
- PRODUCTVERSION 1,6,0,0
+ FILEVERSION PYVERSION64
+ PRODUCTVERSION PYVERSION64
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -44,11 +68,11 @@ BEGIN
     BEGIN
         BLOCK "000004b0"
         BEGIN
-            VALUE "CompanyName", "BeOpen.com\0"
+            VALUE "CompanyName", "Digital Creations 2\0"
             VALUE "FileDescription", "Python Core\0"
             VALUE "FileVersion", PYTHON_VERSION
             VALUE "InternalName", "Python DLL\0"
-            VALUE "LegalCopyright", "Copyright (c) 2000 BeOpen.com. Copyright (c) 1995-2000 CNRI. Copyright (c) 1990-1995 SMC.\0"
+            VALUE "LegalCopyright", "Copyright � 2000, 2001 Guido van Rossum. Copyright � 2000 BeOpen.com. Copyright � 1995-2000 CNRI. Copyright � 1991-1995 SMC.\0"
             VALUE "OriginalFilename", PYTHON_DLL_NAME "\0"
             VALUE "ProductName", "Python\0"
             VALUE "ProductVersion", PYTHON_VERSION
@@ -59,5 +83,3 @@ BEGIN
         VALUE "Translation", 0x0, 1200
     END
 END
-
-/////////////////////////////////////////////////////////////////////////////