microsoft · Kenny Kerr (kennykerr) · May 20, 2026 · May 20, 2026 · May 20, 2026 · May 20, 2026
diff --git a/crates/libs/bindgen/src/config/format.rs b/crates/libs/bindgen/src/config/format.rs
@@ -3,32 +3,12 @@ use std::io::Write;
 
 impl Config<'_> {
     pub fn format(&self, tokens: &str) -> String {
-        let preamble = if self.no_comment {
-            String::new()
-        } else {
-            let version = std::env!("CARGO_PKG_VERSION");
-
-            format!(
-                r#"// Bindings generated by `windows-bindgen` {version}
-
-
-"#
-            )
-        };
-
-        let allow = if self.no_allow {
-            ""
-        } else {
-            "#![allow(non_snake_case, non_upper_case_globals, non_camel_case_types, dead_code, clippy::all)]\n\n"
-        };
-        let tokens = format!("{preamble}{allow}{tokens}");
-
-        let formatted = if let Some(result) = self.rustfmt(&tokens) {
+        let formatted = if let Some(result) = self.rustfmt(tokens) {
             result
         } else {
             self.warnings
                 .add("failed to format output with `rustfmt`".to_string());
-            tokens
+            tokens.to_string()
         };
 
         // `proc_macro2::TokenStream::to_string()` inserts a space between

diff --git a/crates/libs/bindgen/src/config/mod.rs b/crates/libs/bindgen/src/config/mod.rs
@@ -15,8 +15,6 @@ pub struct Config<'a> {
     pub filter: &'a Filter,
     pub output: &'a str,
     pub flat: bool,
-    pub no_allow: bool,
-    pub no_comment: bool,
     pub no_deps: bool,
     pub no_toml: bool,
     pub package: bool,

diff --git a/crates/libs/bindgen/src/lib.rs b/crates/libs/bindgen/src/lib.rs
@@ -80,8 +80,6 @@ pub fn builder() -> Bindgen {
 /// | `--rustfmt` | Overrides the default Rust formatting. |
 /// | `--derive` | Extra traits for types to derive. |
 /// | `--flat` | Avoids the default namespace-to-module conversion. |
-/// | `--no-allow` | Avoids generating the default `allow` attribute. |
-/// | `--no-comment` | Avoids generating the code generation comment. |
 /// | `--no-deps` | Avoids dependencies on the various `windows-*` crates. |
 /// | `--specific-deps` | Uses specific crate dependencies rather than `windows-core`. |
 /// | `--sys` | Generates raw or sys-style Rust bindings. |
@@ -267,24 +265,6 @@ pub fn builder() -> Bindgen {
 /// }
 /// ```
 ///
-/// # `--no-allow`
-///
-/// The bindings also include an allow attribute that covers various common warnings inherent in
-/// generated bindings.
-///
-/// ```rust
-/// #![allow(
-///     non_snake_case,
-///     non_upper_case_globals,
-///     non_camel_case_types,
-///     dead_code,
-///     clippy::all
-/// )]
-/// ```
-///
-/// You can prevent this from being generated if you prefer to manage this yourself with the `--no-allow`
-/// argument.
-///
 /// # `--sys`
 ///
 /// The `--sys` argument instruct the `bindgen` function to generate raw, sometimes called sys-style Rust
@@ -388,12 +368,6 @@ where
                 "--flat" => {
                     builder.flat();
                 }
-                "--no-allow" => {
-                    builder.no_allow();
-                }
-                "--no-comment" => {
-                    builder.no_comment();
-                }
                 "--no-deps" => {
                     builder.no_deps();
                 }
@@ -501,8 +475,6 @@ pub struct Bindgen {
     rustfmt: String,
     link: String,
     flat: bool,
-    no_allow: bool,
-    no_comment: bool,
     no_deps: bool,
     no_toml: bool,
     package: bool,
@@ -629,18 +601,6 @@ impl Bindgen {
         self
     }
 
-    /// Avoid generating the default `allow` attribute.
-    pub fn no_allow(&mut self) -> &mut Self {
-        self.no_allow = true;
-        self
-    }
-
-    /// Avoid generating the code generation comment.
-    pub fn no_comment(&mut self) -> &mut Self {
-        self.no_comment = true;
-        self
-    }
-
     /// Avoid dependencies on the various `windows-*` crates.
     pub fn no_deps(&mut self) -> &mut Self {
         self.no_deps = true;
@@ -906,8 +866,6 @@ impl Bindgen {
             references: &references,
             filter: &filter,
             derive: &derive,
-            no_allow: self.no_allow,
-            no_comment: self.no_comment,
             no_deps: self.no_deps,
             no_toml: self.no_toml,
             package: self.package,

diff --git a/crates/libs/strings/src/bindings.rs b/crates/libs/strings/src/bindings.rs
@@ -1,11 +1,3 @@
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 windows_link::link!("kernel32.dll" "system" fn GetProcessHeap() -> HANDLE);
 windows_link::link!("kernel32.dll" "system" fn HeapAlloc(hheap : HANDLE, dwflags : HEAP_FLAGS, dwbytes : usize) -> *mut core::ffi::c_void);
 windows_link::link!("kernel32.dll" "system" fn HeapFree(hheap : HANDLE, dwflags : HEAP_FLAGS, lpmem : *const core::ffi::c_void) -> BOOL);

diff --git a/crates/libs/strings/src/lib.rs b/crates/libs/strings/src/lib.rs
@@ -32,6 +32,13 @@ mod hstring_header;
 use hstring_header::*;
 
 #[cfg(windows)]
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 
 mod decode;

diff --git a/crates/samples/json/json_validator_winrt/src/bindings.rs b/crates/samples/json/json_validator_winrt/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 windows_core::imp::define_interface!(
     IJsonValidator,
     IJsonValidator_Vtbl,

diff --git a/crates/samples/json/json_validator_winrt/src/lib.rs b/crates/samples/json/json_validator_winrt/src/lib.rs
@@ -1,4 +1,11 @@
 #![cfg(windows)]
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 use jsonschema::Validator;
 use windows::{core::*, Win32::Foundation::*, Win32::System::WinRT::*};

diff --git a/crates/samples/json/json_validator_winrt_client/src/bindings.rs b/crates/samples/json/json_validator_winrt_client/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 windows_core::imp::define_interface!(
     IJsonValidator,
     IJsonValidator_Vtbl,

diff --git a/crates/samples/json/json_validator_winrt_client/src/lib.rs b/crates/samples/json/json_validator_winrt_client/src/lib.rs
@@ -1,5 +1,12 @@
 #![cfg(all(test, windows))]
 
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 use bindings::*;
 use windows::{core::*, Win32::Foundation::*};

diff --git a/crates/samples/robot/client/src/bindings.rs b/crates/samples/robot/client/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn CreateRobotFromHandle(
     handle: *const core::ffi::c_void,

diff --git a/crates/samples/robot/client/src/lib.rs b/crates/samples/robot/client/src/lib.rs
@@ -1,5 +1,12 @@
 #![cfg(all(test, windows))]
 
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 use bindings::*;
 use windows_core::*;

diff --git a/crates/samples/robot/component/src/bindings.rs b/crates/samples/robot/component/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn CreateRobotFromHandle(
     handle: *const core::ffi::c_void,

diff --git a/crates/samples/robot/component/src/lib.rs b/crates/samples/robot/component/src/lib.rs
@@ -1,4 +1,11 @@
 #![cfg(windows)]
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 use windows::{core::*, Win32::Foundation::*, Win32::System::WinRT::*};
 

diff --git a/crates/samples/services/time/src/bindings.rs b/crates/samples/services/time/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 windows_link::link!("kernel32.dll" "system" fn FileTimeToLocalFileTime(lpfiletime : *const FILETIME, lplocalfiletime : *mut FILETIME) -> BOOL);
 windows_link::link!("kernel32.dll" "system" fn FileTimeToSystemTime(lpfiletime : *const FILETIME, lpsystemtime : *mut SYSTEMTIME) -> BOOL);
 pub type BOOL = i32;

diff --git a/crates/samples/services/time/src/main.rs b/crates/samples/services/time/src/main.rs
@@ -2,6 +2,13 @@
 fn main() {}
 
 #[cfg(windows)]
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 
 #[cfg(windows)]

diff --git a/crates/samples/windows/webview/src/bindings.rs b/crates/samples/windows/webview/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn CompareBrowserVersions(
     version1: PCWSTR,

diff --git a/crates/samples/windows/webview/src/main.rs b/crates/samples/windows/webview/src/main.rs
@@ -2,6 +2,13 @@
 fn main() {}
 
 #[cfg(windows)]
+#[allow(
+    non_snake_case,
+    non_upper_case_globals,
+    non_camel_case_types,
+    dead_code,
+    clippy::all
+)]
 mod bindings;
 
 #[cfg(windows)]

diff --git a/crates/samples/windows/xaml_app/src/bindings.rs b/crates/samples/windows/xaml_app/src/bindings.rs
@@ -1,13 +1,3 @@
-// Bindings generated by `windows-bindgen` 0.66.0
-
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[repr(transparent)]
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct Application(windows_core::IUnknown);

diff --git a/crates/samples/windows/xaml_app/src/windows_main.rs b/crates/samples/windows/xaml_app/src/windows_main.rs
@@ -1,3 +1,4 @@
+#[allow(non_snake_case, non_upper_case_globals, non_camel_case_types, dead_code, clippy::all)]
 mod bindings;
 use bindings::*;
 

diff --git a/crates/tests/libs/bindgen/data/README.md b/crates/tests/libs/bindgen/data/README.md
@@ -40,8 +40,6 @@ Supported keys:
 | `filter`         | string     | all        | namespace filter (default: `"Test"`)      |
 | `references`     | string[]   | rdl/clang/bindgen/merge/winmd_to_rdl | extra reader/writer inputs (paths relative to the fixture dir for `winmd_to_rdl`) |
 | `winmd_input`    | string     | winmd_to_rdl | path (relative to the fixture dir) of the prebuilt winmd to filter |
-| `no_allow`       | bool       | bindgen    | pass `--no-allow` to bindgen              |
-| `no_comment`     | bool       | bindgen    | pass `--no-comment` to bindgen            |
 | `specific_deps`  | bool       | bindgen    | pass `--specific-deps` to bindgen         |
 | `kind`           | string     | error      | `"reader"` (default), `"reader_no_input"`, `"writer"`, or `"bindgen"` — which stage must fail |
 | `arch_inputs`    | string[]   | merge      | per-input arch tagging, e.g. `["input-x86.rdl=X86", "input-x64.rdl=X64"]`. Arches are `X86`/`X64`/`Arm64` or `\|`-joined. |

diff --git a/crates/tests/libs/bindgen/data/bindgen/auto_events/fixture.toml b/crates/tests/libs/bindgen/data/bindgen/auto_events/fixture.toml
@@ -1,4 +1,2 @@
 filter = "Test"
-no_allow = true
-no_comment = true
 minimal = true
diff --git a/crates/tests/libs/bindgen/data/bindgen/bool/expected.rs b/crates/tests/libs/bindgen/data/bindgen/bool/expected.rs
@@ -1,11 +1,3 @@
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn EnableMouseInPointer(fenable: bool) -> windows_core::Result<()> {
     windows_core::link!("user32.dll" "system" fn EnableMouseInPointer(fenable : windows_core::BOOL) -> windows_core::BOOL);

diff --git a/crates/tests/libs/bindgen/data/bindgen/bool/fixture.toml b/crates/tests/libs/bindgen/data/bindgen/bool/fixture.toml
@@ -1 +1 @@
-args = "--no-comment --in default --flat --filter EnableMouseInPointer"
+args = "--in default --flat --filter EnableMouseInPointer"
diff --git a/crates/tests/libs/bindgen/data/bindgen/bool_event/expected.rs b/crates/tests/libs/bindgen/data/bindgen/bool_event/expected.rs
@@ -1,11 +1,3 @@
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn CreateEventW<P3>(
     lpeventattributes: Option<*const windows::Win32::Security::SECURITY_ATTRIBUTES>,

diff --git a/crates/tests/libs/bindgen/data/bindgen/bool_event/fixture.toml b/crates/tests/libs/bindgen/data/bindgen/bool_event/fixture.toml
@@ -1 +1 @@
-args = "--no-comment --in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx --reference windows,skip-root,Windows"
+args = "--in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx --reference windows,skip-root,Windows"
diff --git a/crates/tests/libs/bindgen/data/bindgen/bool_event_sans_reference/expected.rs b/crates/tests/libs/bindgen/data/bindgen/bool_event_sans_reference/expected.rs
@@ -1,11 +1,3 @@
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 #[inline]
 pub unsafe fn CreateEventW<P3>(
     lpeventattributes: Option<*const SECURITY_ATTRIBUTES>,

diff --git a/crates/tests/libs/bindgen/data/bindgen/bool_event_sans_reference/fixture.toml b/crates/tests/libs/bindgen/data/bindgen/bool_event_sans_reference/fixture.toml
@@ -1 +1 @@
-args = "--no-comment --in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx"
+args = "--in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx"
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		args = "--no-comment --in default --flat --filter EnableMouseInPointer"
		args = "--in default --flat --filter EnableMouseInPointer"
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		args = "--no-comment --in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx --reference windows,skip-root,Windows"
		args = "--in default --flat --filter CreateEventW SetEvent NtWaitForSingleObject WaitForSingleObjectEx --reference windows,skip-root,Windows"