diff --git a/crates/engine/src/io.rs b/crates/engine/src/io.rs
index 0076e28..9526cbd 100644
--- a/crates/engine/src/io.rs
+++ b/crates/engine/src/io.rs
@@ -1148,7 +1148,10 @@ mod save_tests {
         open_session(&mut missing, &path("A/A.scraft")).unwrap();
         save_session(&mut missing, &path("B/Moved.scraft")).unwrap();
         let mut r = Engine::default();
-        assert_eq!(open_session(&mut r, &path("B/Moved.scraft")).unwrap(), vec![dir.join("A/Audio Files/Audio 1_02.wav").display().to_string()]);
+        assert_eq!(
+            open_session(&mut r, &path("B/Moved.scraft")).unwrap(),
+            vec![dir.join("A").join("Audio Files/Audio 1_02.wav").display().to_string()]
+        );
         let _ = std::fs::remove_dir_all(&dir);
     }
 
diff --git a/crates/video/src/isobmff/codec.rs b/crates/video/src/isobmff/codec.rs
index 0edb8d5..45f08bd 100644
--- a/crates/video/src/isobmff/codec.rs
+++ b/crates/video/src/isobmff/codec.rs
@@ -1392,10 +1392,8 @@ impl SampleEntry {
             CodecConfig::Aac(c) => {
                 b.leaf(b"esds", &esds_payload(0x40, &c.asc, c.max_bitrate, c.avg_bitrate, c.buffer_size));
             }
-            CodecConfig::Mp3 => {
-                if format == *b"mp4a" {
-                    b.leaf(b"esds", &esds_payload(0x6B, &[], 0, 0, 0));
-                }
+            CodecConfig::Mp3 if format == *b"mp4a" => {
+                b.leaf(b"esds", &esds_payload(0x6B, &[], 0, 0, 0));
             }
             CodecConfig::Alac { cookie } => {
                 let m = b.start_full(b"alac", 0, 0);
diff --git a/crates/vst3-host/src/lib.rs b/crates/vst3-host/src/lib.rs
index 0cfd3ab..b872dec 100644
--- a/crates/vst3-host/src/lib.rs
+++ b/crates/vst3-host/src/lib.rs
@@ -294,11 +294,13 @@ mod tests {
         let _ = std::fs::remove_dir_all(&d);
     }
 
+    // Unix only: the test points a ".vst3" at a system library through a symlink.
+    #[cfg(unix)]
     #[test]
     fn a_real_library_without_the_vst3_export_is_rejected() {
         // A system library loads fine but has no `GetPluginFactory`.
         // (macOS system libraries live only in the dyld shared cache, not as files.)
-        let lib = if cfg!(target_os = "macos") || cfg!(windows) {
+        let lib = if cfg!(target_os = "macos") {
             None
         } else {
             ["/lib/x86_64-linux-gnu/libz.so.1", "/usr/lib/libz.so.1", "/lib64/libz.so.1"].iter().map(PathBuf::from).find(|p| p.exists())
@@ -308,12 +310,9 @@ mod tests {
         let _ = std::fs::remove_dir_all(&d);
         std::fs::create_dir_all(&d).unwrap();
         // Point a single-file ".vst3" at it via a symlink (no copying of binaries).
-        #[cfg(unix)]
-        {
-            std::os::unix::fs::symlink(&lib, d.join("z.vst3")).unwrap();
-            let e = load_bundle(&d.join("z.vst3")).unwrap_err();
-            assert!(e.to_string().contains("not a VST3 plugin"), "{e}");
-        }
+        std::os::unix::fs::symlink(&lib, d.join("z.vst3")).unwrap();
+        let e = load_bundle(&d.join("z.vst3")).unwrap_err();
+        assert!(e.to_string().contains("not a VST3 plugin"), "{e}");
         let _ = std::fs::remove_dir_all(&d);
     }
 }
diff --git a/crates/vst3-host/tests/fixture/src/lib.rs b/crates/vst3-host/tests/fixture/src/lib.rs
index 3ba07c6..a537ef6 100644
--- a/crates/vst3-host/tests/fixture/src/lib.rs
+++ b/crates/vst3-host/tests/fixture/src/lib.rs
@@ -52,7 +52,7 @@ fn audio_bus(bus: *mut BusInfo, dir: BusDirection, name: &str) {
     b.channelCount = 2;
     copy_c16(name, &mut b.name);
     b.busType = BusTypes_::kMain as BusType;
-    b.flags = BusInfo_::BusFlags_::kDefaultActive;
+    b.flags = BusInfo_::BusFlags_::kDefaultActive as u32;
 }
 
 unsafe fn channels<'a>(bus: &AudioBusBuffers, frames: usize) -> Vec<&'a mut [f32]> {
@@ -461,7 +461,7 @@ impl IComponentTrait for Synth {
             b.channelCount = 16;
             copy_c16("Notes", &mut b.name);
             b.busType = BusTypes_::kMain as BusType;
-            b.flags = BusInfo_::BusFlags_::kDefaultActive;
+            b.flags = BusInfo_::BusFlags_::kDefaultActive as u32;
             return kResultOk;
         }
         kInvalidArgument
diff --git a/crates/vst3-host/tests/module_exit_shutdown.rs b/crates/vst3-host/tests/module_exit_shutdown.rs
index cc337c9..274823a 100644
--- a/crates/vst3-host/tests/module_exit_shutdown.rs
+++ b/crates/vst3-host/tests/module_exit_shutdown.rs
@@ -38,7 +38,13 @@ fn main() {
     assert!(up_front.status.success(), "shutdown before exit: {:?}\n{}", up_front.status, String::from_utf8_lossy(&up_front.stderr));
     let too_late = run("exit-handler");
     let err = String::from_utf8_lossy(&too_late.stderr);
-    assert_eq!(too_late.status.code(), Some(3), "the exit handler alone comes too late: {err}");
-    assert!(err.contains("module exit after the process exit tore down state"), "{err}");
+    if cfg!(windows) {
+        // Windows runs the executable's exit handlers before a DLL's own, so the fixture's late
+        // state is still there when the host's exit handler runs its module exit.
+        assert!(too_late.status.success(), "the exit handler alone: {:?}\n{err}", too_late.status);
+    } else {
+        assert_eq!(too_late.status.code(), Some(3), "the exit handler alone comes too late: {err}");
+        assert!(err.contains("module exit after the process exit tore down state"), "{err}");
+    }
     println!("module_exit_shutdown: ok");
 }