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diff --git a/montaukos.org/docs/dtinternals/dialogslib.html b/montaukos.org/docs/dtinternals/dialogslib.html
index 0636ff8..610c663 100644
--- a/montaukos.org/docs/dtinternals/dialogslib.html
+++ b/montaukos.org/docs/dtinternals/dialogslib.html
@@ -115,7 +115,7 @@
 
 <h2>Overview</h2>
 <p>
-The dialogs library provides the following system dialogs across apps: 
+The dialogs library (at 0:/os/libdialogs.lib) provides the following system dialogs across apps: 
 </p>
 
 <ul>
@@ -127,7 +127,7 @@ The dialogs library provides the following system dialogs across apps:
 
 <h2>Message Box</h2>
 <p>
-<code>message_box</code> displays a popup window with text and buttons.
+<i>message_box</i> displays a popup window with text and buttons.
 </p>
 
 <pre><code>gui::dialogs::MessageBoxResult message_box(
@@ -140,20 +140,20 @@ The dialogs library provides the following system dialogs across apps:
 <h3>Button Sets</h3>
 <table>
 <tr><th>Value</th><th>Buttons</th></tr>
-<tr><td><code>MESSAGE_BOX_OK</code></td><td>OK</td></tr>
-<tr><td><code>MESSAGE_BOX_OK_CANCEL</code></td><td>OK, Cancel</td></tr>
-<tr><td><code>MESSAGE_BOX_YES_NO</code></td><td>Yes, No</td></tr>
-<tr><td><code>MESSAGE_BOX_YES_NO_CANCEL</code></td><td>Yes, No, Cancel</td></tr>
+<tr><td>MESSAGE_BOX_OK</td><td>OK</td></tr>
+<tr><td>MESSAGE_BOX_OK_CANCEL</td><td>OK, Cancel</td></tr>
+<tr><td>MESSAGE_BOX_YES_NO</td><td>Yes, No</td></tr>
+<tr><td>MESSAGE_BOX_YES_NO_CANCEL</td><td>Yes, No, Cancel</td></tr>
 </table>
 
 <h3>Results</h3>
 <table>
 <tr><th>Value</th><th>Meaning</th></tr>
-<tr><td><code>MESSAGE_BOX_RESULT_OK</code></td><td>The user selected OK.</td></tr>
-<tr><td><code>MESSAGE_BOX_RESULT_CANCEL</code></td><td>The user selected Cancel or closed a cancelable dialog.</td></tr>
-<tr><td><code>MESSAGE_BOX_RESULT_YES</code></td><td>The user selected Yes.</td></tr>
-<tr><td><code>MESSAGE_BOX_RESULT_NO</code></td><td>The user selected No, or closed a Yes/No dialog.</td></tr>
-<tr><td><code>MESSAGE_BOX_RESULT_NONE</code></td><td>The dialog could not be loaded or invoked.</td></tr>
+<tr><td>MESSAGE_BOX_RESULT_OK</td><td>The user selected OK.</td></tr>
+<tr><td>MESSAGE_BOX_RESULT_CANCEL</td><td>The user selected Cancel or closed a cancelable dialog.</td></tr>
+<tr><td>MESSAGE_BOX_RESULT_YES</td><td>The user selected Yes.</td></tr>
+<tr><td>MESSAGE_BOX_RESULT_NO</td><td>The user selected No, or closed a Yes/No dialog.</td></tr>
+<tr><td>MESSAGE_BOX_RESULT_NONE</td><td>The dialog could not be loaded or invoked.</td></tr>
 </table>
 
 <h3>Example</h3>
@@ -172,7 +172,7 @@ void show_confirm() {
 
 <div class="figure">
 <img src="assets/discard_dialog.png" width="337" height="181" alt="Message box asking whether to discard unsaved changes">
-<p>Example <code>MESSAGE_BOX_YES_NO_CANCEL</code> dialog.</p>
+<p>Example <i>MESSAGE_BOX_YES_NO_CANCEL</i> dialog.</p>
 </div>
 
 <h2>File Dialogs</h2>
@@ -256,7 +256,7 @@ bool print_file(
 <pre><code>#include &lt;gui/dialogs.hpp&gt;</code></pre><br>
 
 <hr>
-<p class="center">Copyright &copy; 2026 Montauk Operating System. All rights reserved.<br><br>Page last revised 22 April 2026.</p>
+<p class="center">Copyright &copy; 2026 Montauk Operating System. All rights reserved.<br><br>Page last revised 26 May 2026.</p>
 
 <hr>
 
diff --git a/montaukos.org/docs/dtinternals/files.html b/montaukos.org/docs/dtinternals/files.html
new file mode 100644
index 0000000..9ae0be0
--- /dev/null
+++ b/montaukos.org/docs/dtinternals/files.html
@@ -0,0 +1,163 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="MontaukOS dialogs library API">
+    <title>Dialogs Library - MontaukOS</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600&display=swap" rel="stylesheet">
+    <style>
+        body {
+            font-family: 'Open Sans', Arial, sans-serif;
+            max-width: 960px;
+            margin: 0 auto;
+            padding: 1em;
+            line-height: 1.5;
+            display: flex;
+            gap: 2em;
+        }
+        p { margin: 0 0 0.5em; }
+        h2 { margin: 0.5em 0; }
+        h3 { margin: 0.75em 0 0.35em; }
+        .sidebar {
+            width: 160px;
+            flex-shrink: 0;
+        }
+        .sidebar ul {
+            list-style: none;
+            padding: 0;
+        }
+        .sidebar li {
+            margin: 0.5em 0;
+        }
+        .sidebar a {
+            color: #0066CC;
+            text-decoration: none;
+            font-weight: 600;
+        }
+        .sidebar a:hover {
+            color: #004499;
+            text-decoration: underline;
+        }
+        .sidebar .current {
+            color: #004499;
+        }
+        .sidebar hr {
+            border: none;
+            border-top: 1px solid #999;
+            margin: 0.75em 0;
+        }
+        .main {
+            flex: 1;
+            min-width: 0;
+        }
+        a { color: #0000EE; }
+        a:visited { color: #0066CC; }
+        hr { border-style: solid; border-width: 1px 0 0 0; border-color: #999; }
+        pre { background: #f0f0f0; padding: 0.5em; overflow-x: auto; }
+        code { background: #f0f0f0; padding: 0 0.15em; }
+        pre code { padding: 0; }
+        table {
+            border-collapse: collapse;
+            width: 100%;
+            margin: 0.5em 0;
+        }
+        th, td {
+            border: 1px solid #999;
+            padding: 0.35em 0.5em;
+            text-align: left;
+            vertical-align: top;
+        }
+        th { background: #f0f0f0; }
+        .center { text-align: center; }
+        .box {
+            border: 1px solid #999;
+            padding: 0.5em;
+            margin: 0.5em 0;
+        }
+        .figure {
+            margin: 0.75em 0;
+        }
+        .figure img {
+            display: block;
+            max-width: 100%;
+            height: auto;
+            border: 1px solid #999;
+        }
+        .figure p {
+            color: #555;
+            font-size: 0.9em;
+            margin: 0.25em 0 0;
+        }
+    </style>
+</head>
+<body>
+
+<div class="sidebar">
+<ul>
+<li><a href="../../index.html">Home</a></li>
+<li><a href="../index.html">Documentation</a></li>
+</ul>
+<hr>
+<ul>
+<li><a href="../introduction.html">Introduction</a></li>
+</ul>
+</div>
+
+<div class="main">
+<div class="center">
+<h1>File Manager</h1>
+</div>
+
+<hr>
+
+<h2>Overview</h2>
+<p>
+The Files app provides an interface that allows users of MontaukOS to:
+</p>
+
+<ul>
+    <li>Navigate and manage files on available volumes</li>
+    <li>View and access user libraries</li>
+    <li>View and access installed applications (see &sect; Apps folder)</li>
+    <li>View and access installed applications (see &sect; Settings/System Configuration folder)</li>
+</ul>
+
+<br>
+<div class="figure">
+<img src="assets/files.png" alt="Files app displaying Computer view with user libraries, ramdisk volume, Settings, and Apps folder.">
+<p>Files app displaying Computer view with user libraries, ramdisk volume, Settings, and Apps folder.</p>
+</div>
+
+<hr>
+<h2>Technical notes</h2>
+<ul>
+    <li>The Files app is one of two windowed applications (the other being the Desktop Settings applet) compiled directly into the desktop's binary (<i>0:/os/desktop.elf</i>) rather than being a separate application. Crashes of the Files app may therefore cause the entire desktop process to crash, kicking the user back to the login screen (<i>0:/os/login.elf</i>).</li>
+    <br>
+    <li>Most of the Files app does not use the MTK toolkit, relying on custom GUI views to render complex file views; however, Properties and delete confirmation windows within the Files app do rely on the MTK toolkit.</li>
+</ul>
+
+<br>
+<hr>
+
+<h2>Apps folder</h2>
+<div class="figure">
+<img src="assets/files_apps_view.png" alt="Apps folder in the Files app displaying installed applications on a MontaukOS development build.">
+<p>Apps folder in the Files app displaying installed applications on a MontaukOS development build.</p>
+</div>
+
+<br>
+<hr>
+<p class="center">Copyright &copy; 2026 Montauk Operating System. All rights reserved.<br><br>Page last revised 26 May 2026.</p>
+
+<hr>
+
+<div class="center">
+<a href="../index.html">Back to Documentation Index</a>
+</div>
+
+</div>
+</body>
+</html>
diff --git a/montaukos.org/docs/dtinternals/index.html b/montaukos.org/docs/dtinternals/index.html
index 282dd63..2074519 100644
--- a/montaukos.org/docs/dtinternals/index.html
+++ b/montaukos.org/docs/dtinternals/index.html
@@ -86,10 +86,6 @@
 <li><a href="index.html" class="current">Desktop Internals</a></li>
 </ul>
 <hr>
-<ul>
-<li><a href="dialogslib.html">Dialogs Library</a></li>
-<li><a href="systemconfiguration.html">System Configuration Virtual Folder</a></li>
-</ul>
 </div>
 
 <div class="main">
@@ -100,8 +96,7 @@
 <hr>
 
 <p>
-This volume documents the internal architecture of the MontaukOS desktop environment,
-including the dialogs library, virtual folder system, and system configuration applets.
+Internals of the MontaukOS desktop.
 </p>
 
 <h2>Pages</h2>
@@ -111,8 +106,8 @@ including the dialogs library, virtual folder system, and system configuration a
         <p>File, print, and message box dialogs exposed through the shared dialogs library.</p>
     </li>
     <li>
-        <a href="systemconfiguration.html">System Configuration Virtual Folder</a>
-        <p>Virtual view used for built-in configuration applets.</p>
+        <a href="files.html">Files app</a>
+        <p>The File Manager application.</p>
     </li>
 </ul>
 
diff --git a/montaukos.org/docs/dtinternals/systemconfiguration.html b/montaukos.org/docs/dtinternals/systemconfiguration.html
deleted file mode 100644
index d01f779..0000000
--- a/montaukos.org/docs/dtinternals/systemconfiguration.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Document</title>
-</head>
-<body>
-    
-</body>
-</html>
\ No newline at end of file

Value	Buttons
`MESSAGE_BOX_OK`	OK
`MESSAGE_BOX_OK_CANCEL`	OK, Cancel
`MESSAGE_BOX_YES_NO`	Yes, No
`MESSAGE_BOX_YES_NO_CANCEL`	Yes, No, Cancel
MESSAGE_BOX_OK	OK
MESSAGE_BOX_OK_CANCEL	OK, Cancel
MESSAGE_BOX_YES_NO	Yes, No
MESSAGE_BOX_YES_NO_CANCEL	Yes, No, Cancel
Value	Meaning
`MESSAGE_BOX_RESULT_OK`	The user selected OK.
`MESSAGE_BOX_RESULT_CANCEL`	The user selected Cancel or closed a cancelable dialog.
`MESSAGE_BOX_RESULT_YES`	The user selected Yes.
`MESSAGE_BOX_RESULT_NO`	The user selected No, or closed a Yes/No dialog.
`MESSAGE_BOX_RESULT_NONE`	The dialog could not be loaded or invoked.
MESSAGE_BOX_RESULT_OK	The user selected OK.
MESSAGE_BOX_RESULT_CANCEL	The user selected Cancel or closed a cancelable dialog.
MESSAGE_BOX_RESULT_YES	The user selected Yes.
MESSAGE_BOX_RESULT_NO	The user selected No, or closed a Yes/No dialog.
MESSAGE_BOX_RESULT_NONE	The dialog could not be loaded or invoked.