diff --git a/demo/app.js b/demo/app.js
index 65eebf47..7e84665c 100644
--- a/demo/app.js
+++ b/demo/app.js
@@ -25,17 +25,10 @@ app.get('/js/*.js', function(req, res){
     res.sendFile(__dirname + req.url);
 });
 
-const SHELL_ARGS = {
-    bash: ['--login'],
-    'cmd.exe': [],
-};
-
-var shell_name = process.platform === 'win32' ? 'cmd.exe' : 'bash';
-
 app.post('/terminals', function (req, res) {
   var cols = parseInt(req.query.cols),
       rows = parseInt(req.query.rows),
-      term = pty.spawn(shell_name, SHELL_ARGS[shell_name], {
+      term = pty.spawn(process.platform === 'win32' ? 'cmd.exe' : 'bash', [], {
         encoding: null,
         name: 'xterm-color',
         cols: cols || 80,
diff --git a/demo/index.html b/demo/index.html
index 494b9f38..4501d518 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -23,43 +23,6 @@
         <div id="terminal-container"></div>
 
         <div id="zmodem_controls">
-            <form id="zm_start" style="display: none" action="javascript:void(0)">
-                ZMODEM detected: Start ZMODEM session?
-                <label><input id="zmstart_yes" name="zmstart" type=radio checked value="1"> Yes</label>
-                &nbsp;
-                <label><input name="zmstart" type=radio value=""> No</label>
-                <button type="submit">Submit</button>
-            </form>
-
-            <form id="zm_offer" style="display: none" action="javascript:void(0)">
-                <p>ZMODEM File offered!</p>
-
-                <label><input id="zmaccept_yes" name="zmaccept" type=radio checked value="1"> Accept</label>
-                &nbsp;
-                <label><input name="zmaccept" type=radio value=""> Skip</label>
-                <button type="submit">Submit</button>
-            </form>
-
-            <div id="zm_file" style="display: none">
-                <div>Name: <span id="name"></span></div>
-                <div>Size: <span id="size"></span></div>
-                <div>Last modified: <span id="mtime"></span></div>
-                <div>Mode: <span id="mode"></span></div>
-                <br>
-                <div>Conversion: <span id="zfile_conversion"></span></div>
-                <div>Management: <span id="zfile_management"></span></div>
-                <div>Transport: <span id="zfile_transport"></span></div>
-                <div>Sparse? <span id="zfile_sparse"></span></div>
-                <br>
-                <div>Files remaining in batch: <span id="files_remaining"></span></div>
-                <div>Bytes remaining in batch: <span id="bytes_remaining"></span></div>
-            </div>
-
-            <form id="zm_progress" style="display: none" action="javascript:void(0)">
-                <div><span id="percent_received"></span>% (<span id="bytes_received"></span> bytes) received</div>
-                <button id="zm_progress_skipper" type="button" onclick="skip_current_file();">Skip File</button>
-            </form>
-
             <form id="zm_choose" style="display: none" action="javascript:void(0)">
                 <label>Choose file(s): <input id="zm_files" type="file" multiple></label>
                 <button type="submit">Send</button>
diff --git a/demo/main.js b/demo/main.js
index 522436cf..b3ea72a6 100644
--- a/demo/main.js
+++ b/demo/main.js
@@ -114,165 +114,40 @@ function createTerminal() {
 
         term.zmodemAttach(socket);
 
-        term.on("zmodemRetract", () => {
-            start_form.style.display = "none";
-            start_form.onsubmit = null;
-        });
-
         term.on("zmodemDetect", (detection) => {
-            function do_zmodem() {
-                term.detach();
-                let zsession = detection.confirm();
+            term.detach();
+            let zsession = detection.confirm();
 
-                var promise;
+            var promise;
 
-                if (zsession.type === "receive") {
-                    promise = _handle_receive_session(zsession);
-                }
-                else {
-                    promise = _handle_send_session(zsession);
-                }
-
-                promise.catch( console.error.bind(console) ).then( () => {
-                    term.attach(socket);
-                } );
-            }
-
-            if (_auto_zmodem()) {
-                do_zmodem();
+            if (zsession.type === "receive") {
+                promise = zmodemHandleReceiveSession(zsession);
             }
             else {
-                start_form.style.display = "";
-                start_form.onsubmit = function(e) {
-                    start_form.style.display = "none";
-
-                    if (document.getElementById("zmstart_yes").checked) {
-                        do_zmodem();
-                    }
-                    else {
-                        detection.deny();
-                    }
-                };
+                promise = zmodemHandleSendSession(zsession);
             }
+
+            promise.catch( console.error.bind(console) ).then( () => {
+                term.attach(socket);
+            } );
         });
       });
     });
   }, 0);
 }
 
-//----------------------------------------------------------------------
-// UI STUFF
-
-function _show_file_info(xfer) {
-    var file_info = xfer.get_details();
-
-    document.getElementById("name").textContent = file_info.name;
-    document.getElementById("size").textContent = file_info.size;
-    document.getElementById("mtime").textContent = file_info.mtime;
-    document.getElementById("files_remaining").textContent = file_info.files_remaining;
-    document.getElementById("bytes_remaining").textContent = file_info.bytes_remaining;
-
-    document.getElementById("mode").textContent = "0" + file_info.mode.toString(8);
-
-    var xfer_opts = xfer.get_options();
-    ["conversion", "management", "transport", "sparse"].forEach( (lbl) => {
-        document.getElementById(`zfile_${lbl}`).textContent = xfer_opts[lbl];
-    } );
-
-    document.getElementById("zm_file").style.display = "";
-}
-function _hide_file_info() {
-    document.getElementById("zm_file").style.display = "none";
-}
-
-function _save_to_disk(xfer, buffer) {
-    return Zmodem.Browser.save_to_disk(buffer, xfer.get_details().name);
-}
-
-var skipper_button = document.getElementById("zm_progress_skipper");
-var skipper_button_orig_text = skipper_button.textContent;
-
-function _show_progress() {
-    skipper_button.disabled = false;
-    skipper_button.textContent = skipper_button_orig_text;
-
-    document.getElementById("bytes_received").textContent = 0;
-    document.getElementById("percent_received").textContent = 0;
-
-    document.getElementById("zm_progress").style.display = "";
-}
-
-function _update_progress(xfer) {
-    var total_in = xfer.get_offset();
-
-    document.getElementById("bytes_received").textContent = total_in;
-
-    var percent_received = 100 * total_in / xfer.get_details().size;
-    document.getElementById("percent_received").textContent = percent_received.toFixed(2);
-}
-
-function _hide_progress() {
-    document.getElementById("zm_progress").style.display = "none";
-}
-
-var start_form = document.getElementById("zm_start");
-
-function _auto_zmodem() {
-    return document.getElementById("zmodem-auto").checked;
-}
-
-// END UI STUFF
-//----------------------------------------------------------------------
-
-function _handle_receive_session(zsession) {
+function zmodemHandleReceiveSession(zsession) {
     zsession.on("offer", function(xfer) {
-        current_receive_xfer = xfer;
-
-        _show_file_info(xfer);
-
-        var offer_form = document.getElementById("zm_offer");
-
-        function on_form_submit() {
-            offer_form.style.display = "none";
-
-            //START
-            //if (offer_form.zmaccept.value) {
-            if (_auto_zmodem() || document.getElementById("zmaccept_yes").checked) {
-                _show_progress();
-
-                var FILE_BUFFER = [];
-                xfer.on("input", (payload) => {
-                    _update_progress(xfer);
-                    FILE_BUFFER.push( new Uint8Array(payload) );
-                });
-                xfer.accept().then(
-                    () => {
-                        _save_to_disk(xfer, FILE_BUFFER);
-                    },
-                    console.error.bind(console)
-                );
-            }
-            else {
-                xfer.skip();
-            }
-            //END
-        }
-
-        if (_auto_zmodem()) {
-            on_form_submit();
-        }
-        else {
-            offer_form.onsubmit = on_form_submit;
-            offer_form.style.display = "";
-        }
+        xfer.accept().then(
+            (inputs) => {
+                Zmodem.Browser.save_to_disk(inputs, xfer.get_details().name);
+            },
+            console.error.bind(console)
+        );
     } );
 
     var promise = new Promise( (res) => {
-        zsession.on("session_end", () => {
-            _hide_file_info();
-            _hide_progress();
-            res();
-        } );
+        zsession.on("session_end", res);
     } );
 
     zsession.start();
@@ -280,11 +155,11 @@ function _handle_receive_session(zsession) {
     return promise;
 }
 
-function _handle_send_session(zsession) {
+function zmodemHandleSendSession(zsession) {
     var choose_form = document.getElementById("zm_choose");
     choose_form.style.display = "";
 
-    var promise = new Promise( (res) => {
+    return new Promise( (res) => {
         choose_form.onsubmit = function(e) {
             choose_form.style.display = "none";
 
@@ -293,43 +168,13 @@ function _handle_send_session(zsession) {
 
             Zmodem.Browser.send_files(
                 zsession,
-                files_obj,
-                {
-                    on_offer_response(obj, xfer) {
-                        if (xfer) _show_progress();
-                        //console.log("offer", xfer ? "accepted" : "skipped");
-                    },
-                    on_progress(obj, xfer) {
-                        _update_progress(xfer);
-                    },
-                    on_file_complete(obj) {
-                        //console.log("COMPLETE", obj);
-                        _hide_progress();
-                    },
-                }
-            ).then(_hide_progress).then(
+                files_obj
+            ).then(
                 zsession.close.bind(zsession),
                 console.error.bind(console)
-            ).then( () => {
-                _hide_file_info();
-                _hide_progress();
-                res();
-            } );
+            ).then(res);
         };
     } );
-
-    return promise;
-}
-
-//This is here to allow canceling of an in-progress ZMODEM transfer.
-var current_receive_xfer;
-
-//Called from HTML directly.
-function skip_current_file() {
-    current_receive_xfer.skip();
-
-    skipper_button.disabled = true;
-    skipper_button.textContent = "Waiting for server to acknowledge skip …";
 }
 
 function runRealTerminal() {
diff --git a/src/addons/zmodem/zmodem.js b/src/addons/zmodem/zmodem.js
index 6ef8ba24..c9a7c8a2 100644
--- a/src/addons/zmodem/zmodem.js
+++ b/src/addons/zmodem/zmodem.js
@@ -16,7 +16,7 @@
  * See zmodem.js’s documentation for more details.
  *
  * **IMPORTANT:** After you confirm() a zmodem.js Detection, if you have
- *  used the `attach` or `turbinado` addons, you’ll need to suspend their
+ *  used the `attach` or `terminado` addons, you’ll need to suspend their
  *  operation for the duration of the ZMODEM session. (The demo does this
  *  via `detach()` and a re-`attach()`.)
  */