HttpListener.HttpListener Constructor

Initializes a new instance of the HttpListener class.

Namespace: System.Net
Assembly: System (in system.dll)

HttpListener ()
public HttpListener ()
public function HttpListener ()
Not applicable.

Exception typeCondition


This class cannot be used on the current operating system. Windows Server 2003 or Windows XP SP2 is required to use instances of this class.

Before using the instance returned by this constructor, you must invoke its Start method.

Notes to Callers: Note: This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.

The following code example demonstrates using the HttpListener constructor to create a new HttpListener object. For the complete example, see the HttpListener class topic.

// Set up a listener.
HttpListener listener = new HttpListener();
foreach (string s in prefixes)

// Set up a listener.
HttpListener listener = new HttpListener();
for (int iCtr = 0; iCtr < prefixes.get_Length(); iCtr++) {
    String s = prefixes[iCtr];

Windows 98, Windows Server 2003, Windows XP Media Center Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0