diff --git a/WelsonJS.Toolkit/WelsonJS.Launcher/ExecutablesCollector.cs b/WelsonJS.Toolkit/WelsonJS.Launcher/ExecutablesCollector.cs
index 4970fa6..b4e44ef 100644
--- a/WelsonJS.Toolkit/WelsonJS.Launcher/ExecutablesCollector.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Launcher/ExecutablesCollector.cs
@@ -1,6 +1,7 @@
 using Microsoft.Win32;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
@@ -61,7 +62,10 @@ namespace WelsonJS.Launcher
                                             .ToList();
                     executables.AddRange(executableFiles);
                 }
-                catch (Exception) { }
+                catch (Exception ex)
+                {
+                    Debug.WriteLine($"Error enumerating executables in '{installLocation}': {ex}");
+                }
             }
 
             if (!string.IsNullOrEmpty(uninstallString))
@@ -77,7 +81,7 @@ namespace WelsonJS.Launcher
 
         private static bool TryParseExecutablePath(string s, out string path)
         {
-            Match match = Regex.Match(s, @"(?<=""|^)([a-zA-Z]:\\[^""\s]+\.exe)");
+            Match match = Regex.Match(s, @"(?<=""|^)([a-zA-Z]:\\[^""]+\.exe)", RegexOptions.IgnoreCase);
 
             if (match.Success)
             {
@@ -104,7 +108,10 @@ namespace WelsonJS.Launcher
                         {
                             executables.AddRange(Directory.GetFiles(path, "*.exe", SearchOption.TopDirectoryOnly));
                         }
-                        catch (Exception) { }
+                        catch (Exception ex)
+                        {
+                            Debug.WriteLine($"Error enumerating executables in '{path}': {ex}");
+                        }
                     }
                 }
             }
diff --git a/WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs b/WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs
index 55dc8f3..e70228a 100644
--- a/WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Launcher/ResourceServer.cs
@@ -114,19 +114,19 @@ namespace WelsonJS.Launcher
                 .Where(exec => exec.IndexOf(word, 0, StringComparison.OrdinalIgnoreCase) > -1)
                 .Select(exec => new CompletionItem
                 {
-                    label = Path.GetFileName(exec),
-                    kind = "Text",
-                    documentation = "An executable file",
-                    insertText = exec
+                    Label = Path.GetFileName(exec),
+                    Kind = "Text",
+                    Documentation = "An executable file",
+                    InsertText = exec
                 })
                 .ToArray();
 
             XElement response = new XElement("suggestions",
                 completionItems.Select(item => new XElement("item",
-                    new XElement("label", item.label),
-                    new XElement("kind", item.kind),
-                    new XElement("documentation", item.documentation),
-                    new XElement("insertText", item.insertText)
+                    new XElement("label", item.Label),
+                    new XElement("kind", item.Kind),
+                    new XElement("documentation", item.Documentation),
+                    new XElement("insertText", item.InsertText)
                 ))
             );
 
@@ -138,8 +138,11 @@ namespace WelsonJS.Launcher
             context.Response.StatusCode = statusCode;
             context.Response.ContentType = "application/xml";
             context.Response.ContentLength64 = data.Length;
-            context.Response.OutputStream.Write(data, 0, data.Length);
-            context.Response.OutputStream.Close();
+            using (Stream outputStream = context.Response.OutputStream)
+            {
+                context.Response.OutputStream.Write(data, 0, data.Length);
+                context.Response.OutputStream.Close();
+            }
         }
 
         private void ServeResource(HttpListenerContext context, byte[] data, string mimeType = "text/html")
@@ -157,8 +160,11 @@ namespace WelsonJS.Launcher
             context.Response.StatusCode = statusCode;
             context.Response.ContentType = mimeType;
             context.Response.ContentLength64 = data.Length;
-            context.Response.OutputStream.Write(data, 0, data.Length);
-            context.Response.OutputStream.Close();
+            using (Stream outputStream = context.Response.OutputStream)
+            {
+                context.Response.OutputStream.Write(data, 0, data.Length);
+                context.Response.OutputStream.Close();
+            }
         }
 
         private byte[] GetResource(string resourceName)
@@ -214,9 +220,9 @@ namespace WelsonJS.Launcher
 
     public class CompletionItem
     {
-        public string label { get; set; }
-        public string kind { get; set; }
-        public string documentation { get; set; }
-        public string insertText { get; set; }
+        public string Label { get; set; }
+        public string Kind { get; set; }
+        public string Documentation { get; set; }
+        public string InsertText { get; set; }
     }
 }