4 files changed, 11 insertions, 3 deletions
diff --git a/src/libstd/sys/windows/ext/ffi.rs b/src/libstd/sys/windows/ext/ffi.rs
index 3fa96f4dd13..253787546c1 100644
--- a/src/libstd/sys/windows/ext/ffi.rs
+++ b/src/libstd/sys/windows/ext/ffi.rs
@@ -17,6 +17,7 @@ use sys::os_str::Buf;
 use sys_common::wtf8::Wtf8Buf;
 use sys_common::{FromInner, AsInner};
 
+#[stable(feature = "rust1", since = "1.0.0")]
 pub use sys_common::wtf8::EncodeWide;
 
 /// Windows-specific extensions to `OsString`.
diff --git a/src/libstd/sys/windows/ext/fs.rs b/src/libstd/sys/windows/ext/fs.rs
index 9fe6527d89e..0d78d4de42b 100644
--- a/src/libstd/sys/windows/ext/fs.rs
+++ b/src/libstd/sys/windows/ext/fs.rs
@@ -49,6 +49,9 @@ pub trait OpenOptionsExt {
     fn share_mode(&mut self, val: u32) -> &mut Self;
 }
 
+#[unstable(feature = "open_options_ext",
+           reason = "may require more thought/methods",
+           issue = "27720")]
 impl OpenOptionsExt for OpenOptions {
     fn desired_access(&mut self, access: u32) -> &mut OpenOptions {
         self.as_inner_mut().desired_access(access); self
diff --git a/src/libstd/sys/windows/ext/mod.rs b/src/libstd/sys/windows/ext/mod.rs
index f69c2d075e3..7f095ae7ff6 100644
--- a/src/libstd/sys/windows/ext/mod.rs
+++ b/src/libstd/sys/windows/ext/mod.rs
@@ -27,12 +27,12 @@ pub mod process;
 /// Includes all extension traits, and some important type definitions.
 #[stable(feature = "rust1", since = "1.0.0")]
 pub mod prelude {
-    #[doc(no_inline)]
+    #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::io::{RawSocket, RawHandle, AsRawSocket, AsRawHandle};
-    #[doc(no_inline)]
+    #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::io::{FromRawSocket, FromRawHandle, IntoRawSocket, IntoRawHandle};
     #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::ffi::{OsStrExt, OsStringExt};
-    #[doc(no_inline)]
+    #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::fs::{OpenOptionsExt, MetadataExt};
 }
diff --git a/src/libstd/sys/windows/ext/process.rs b/src/libstd/sys/windows/ext/process.rs
index fde21e9a798..dffe68915fb 100644
--- a/src/libstd/sys/windows/ext/process.rs
+++ b/src/libstd/sys/windows/ext/process.rs
@@ -32,6 +32,7 @@ impl AsRawHandle for process::Child {
     }
 }
 
+#[stable(feature = "process_extensions", since = "1.2.0")]
 impl IntoRawHandle for process::Child {
     fn into_raw_handle(self) -> RawHandle {
         self.into_inner().into_handle().into_raw() as *mut _
@@ -59,18 +60,21 @@ impl AsRawHandle for process::ChildStderr {
     }
 }
 
+#[stable(feature = "process_extensions", since = "1.2.0")]
 impl IntoRawHandle for process::ChildStdin {
     fn into_raw_handle(self) -> RawHandle {
         self.into_inner().into_handle().into_raw() as *mut _
     }
 }
 
+#[stable(feature = "process_extensions", since = "1.2.0")]
 impl IntoRawHandle for process::ChildStdout {
     fn into_raw_handle(self) -> RawHandle {
         self.into_inner().into_handle().into_raw() as *mut _
     }
 }
 
+#[stable(feature = "process_extensions", since = "1.2.0")]
 impl IntoRawHandle for process::ChildStderr {
     fn into_raw_handle(self) -> RawHandle {
         self.into_inner().into_handle().into_raw() as *mut _