diff --git a/Features/UserUIExtension.cs b/Features/UserUIExtension.cs
new file mode 100644
index 0000000..eb3b1de
--- /dev/null
+++ b/Features/UserUIExtension.cs
@@ -0,0 +1,124 @@
+using Disco.Models.UI.User;
+using Disco.Services.Interop.ActiveDirectory;
+using Disco.Services.Plugins;
+using Disco.Services.Plugins.Features.UIExtension;
+using System;
+using System.Text;
+using System.Web.Mvc;
+
+namespace Disco.Plugins.ADCompare.Features
+{
+    [PluginFeature(Id = "ADCompareUserUI", Name = "User Page - AD Compare")]
+    public class UserUIExtension : UIExtensionFeature<UserShowModel>
+    {
+        public override UIExtensionResult ExecuteAction(ControllerContext context, UserShowModel model)
+        {
+            var user = model.User;
+            if (user == null || string.IsNullOrEmpty(user.UserId))
+                return Nothing();
+
+            var html = new StringBuilder();
+            html.Append("<div class='form-group' style='margin-top:15px;'>");
+            html.Append("<h4 style='border-bottom:1px solid #ddd;padding-bottom:5px;'>");
+            html.Append("<i class='fa fa-exchange'></i> AD Details</h4>");
+
+            try
+            {
+                var adUser = ActiveDirectory.RetrieveADUserAccount(
+                    user.UserId,
+                    new[] { "lastLogonTimestamp", "whenCreated", "memberOf" });
+
+                if (adUser == null)
+                {
+                    html.Append("<div class='alert alert-danger'>");
+                    html.Append("<i class='fa fa-times-circle'></i> User not found in Active Directory");
+                    html.Append("</div>");
+                }
+                else
+                {
+                    html.Append("<table class='table table-condensed' style='margin-bottom:10px;'>");
+
+                    html.Append("<tr><td style='width:180px;'><strong>AD Status</strong></td><td>");
+                    if (adUser.IsDisabled)
+                    {
+                        html.Append("<span class='text-danger'><i class='fa fa-ban'></i> Disabled</span>");
+                    }
+                    else
+                    {
+                        html.Append("<span class='text-success'><i class='fa fa-check-circle'></i> Active</span>");
+                    }
+                    html.Append("</td></tr>");
+
+                    var lastLogonTicks = adUser.GetPropertyValue<long>("lastLogonTimestamp");
+                    html.Append("<tr><td><strong>Last Login</strong></td><td>");
+                    if (lastLogonTicks > 0)
+                    {
+                        try
+                        {
+                            var lastLogon = DateTime.FromFileTime(lastLogonTicks);
+                            var ago = DateTime.Now.Subtract(lastLogon);
+                            html.Append(Encode(lastLogon.ToString("dd/MM/yyyy hh:mm tt")));
+                            html.Append(" <span class='text-muted'>(");
+                            html.Append(FormatTimeAgo(ago));
+                            html.Append(")</span>");
+
+                            if (ago.TotalDays > 30 && !adUser.IsDisabled)
+                            {
+                                html.Append(" <span class='label label-warning'>Inactive 30+ days</span>");
+                            }
+                        }
+                        catch
+                        {
+                            html.Append("<em class='text-muted'>Unable to parse</em>");
+                        }
+                    }
+                    else
+                    {
+                        html.Append("<em class='text-muted'>Never</em>");
+                    }
+                    html.Append("</td></tr>");
+
+                    if (!string.IsNullOrEmpty(adUser.DistinguishedName))
+                    {
+                        html.Append("<tr><td><strong>AD Location</strong></td><td>");
+                        html.Append("<small>");
+                        html.Append(Encode(adUser.DistinguishedName));
+                        html.Append("</small>");
+                        html.Append("</td></tr>");
+                    }
+
+                    html.Append("</table>");
+                }
+            }
+            catch (Exception ex)
+            {
+                html.Append("<div class='alert alert-warning'>");
+                html.Append("<i class='fa fa-exclamation-triangle'></i> AD lookup error: ");
+                html.Append(Encode(ex.Message));
+                html.Append("</div>");
+            }
+
+            html.Append("</div>");
+            return Literal(html.ToString());
+        }
+
+        private string Encode(string value)
+        {
+            if (string.IsNullOrEmpty(value)) return "";
+            return System.Web.HttpUtility.HtmlEncode(value);
+        }
+
+        private string FormatTimeAgo(TimeSpan span)
+        {
+            if (span.TotalDays >= 365)
+                return string.Format("{0} year(s) ago", (int)(span.TotalDays / 365));
+            if (span.TotalDays >= 30)
+                return string.Format("{0} month(s) ago", (int)(span.TotalDays / 30));
+            if (span.TotalDays >= 1)
+                return string.Format("{0} day(s) ago", (int)span.TotalDays);
+            if (span.TotalHours >= 1)
+                return string.Format("{0} hour(s) ago", (int)span.TotalHours);
+            return "Just now";
+        }
+    }
+}