From 13fa313bebed71d8bc64f1cfdaf4b2f1ddd3ce5f Mon Sep 17 00:00:00 2001
From: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Date: Mon, 10 Nov 2025 13:37:34 +0000
Subject: [PATCH] gh-139707: Specify `winreg`, `msvcrt` and `winsound` module
 availability in docs (GH-140429)

---
 Doc/library/msvcrt.rst   | 2 ++
 Doc/library/winreg.rst   | 2 ++
 Doc/library/winsound.rst | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/Doc/library/msvcrt.rst b/Doc/library/msvcrt.rst
index 327cc3602b1a..a2c5e375d2cc 100644
--- a/Doc/library/msvcrt.rst
+++ b/Doc/library/msvcrt.rst
@@ -22,6 +22,8 @@ api. The normal API deals only with ASCII characters and is of limited use
 for internationalized applications. The wide char API should be used where
 ever possible.
 
+.. availability:: Windows.
+
 .. versionchanged:: 3.3
    Operations in this module now raise :exc:`OSError` where :exc:`IOError`
    was raised.
diff --git a/Doc/library/winreg.rst b/Doc/library/winreg.rst
index df8fb83a0189..b150c53735d6 100644
--- a/Doc/library/winreg.rst
+++ b/Doc/library/winreg.rst
@@ -14,6 +14,8 @@ integer as the registry handle, a :ref:`handle object <handle-object>` is used
 to ensure that the handles are closed correctly, even if the programmer neglects
 to explicitly close them.
 
+.. availability:: Windows.
+
 .. _exception-changed:
 
 .. versionchanged:: 3.3
diff --git a/Doc/library/winsound.rst b/Doc/library/winsound.rst
index 925984c3cdb0..93c0c0259820 100644
--- a/Doc/library/winsound.rst
+++ b/Doc/library/winsound.rst
@@ -13,6 +13,8 @@
 The :mod:`winsound` module provides access to the basic sound-playing machinery
 provided by Windows platforms.  It includes functions and several constants.
 
+.. availability:: Windows.
+
 
 .. function:: Beep(frequency, duration)
 
-- 
2.47.3