diff --git a/cmd/zenity/main.go b/cmd/zenity/main.go
index 3b35d9b..a31fb58 100644
--- a/cmd/zenity/main.go
+++ b/cmd/zenity/main.go
@@ -219,9 +219,7 @@ func setupFlags() {
 	flag.BoolVar(&pulsate, "pulsate", false, "Pulsate progress bar")
 	flag.BoolVar(&noCancel, "no-cancel", false, "Hide Cancel button (Windows and Unix only)")
 	flag.BoolVar(&autoClose, "auto-close", false, "Dismiss the dialog when 100% has been reached")
-	if runtime.GOOS != "windows" {
-		flag.BoolVar(&autoKill, "auto-kill", false, "Kill parent process if Cancel button is pressed (macOS and Unix only)")
-	}
+	flag.BoolVar(&autoKill, "auto-kill", false, "Kill parent process if Cancel button is pressed (macOS and Unix only)")
 
 	// Notify options
 	flag.BoolVar(&listen, "listen", false, "Listen for commands on stdin")
diff --git a/cmd/zenity/progress.go b/cmd/zenity/progress.go
index 01ca755..065c613 100644
--- a/cmd/zenity/progress.go
+++ b/cmd/zenity/progress.go
@@ -69,6 +69,8 @@ func progress(opts ...zenity.Option) (err error) {
 	if err := dlg.Complete(); err != nil {
 		return err
 	}
-	<-dlg.Done()
+	if !autoClose {
+		<-dlg.Done()
+	}
 	return dlg.Close()
 }
diff --git a/progress_windows.go b/progress_windows.go
index 0d2d58d..d876d75 100644
--- a/progress_windows.go
+++ b/progress_windows.go
@@ -257,5 +257,8 @@ func (d *progressDialog) Complete() error {
 func (d *progressDialog) Close() error {
 	sendMessage.Call(d.wnd, 0x0112 /* WM_SYSCOMMAND */, 0xf060 /* SC_CLOSE */, 0)
 	<-d.done
+	if d.err == ErrCanceled {
+		return nil
+	}
 	return d.err
 }