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HttpRuntime Class

Provides a set of ASP.NET run-time services for the current application.

Namespace: System.Web
Assembly: System.Web (in system.web.dll)

public ref class HttpRuntime sealed
public final class HttpRuntime
public final class HttpRuntime
Not applicable.

The HttpRuntime object is used at the beginning of the ASP.NET pipeline model that processes HTTP requests. The ProcessRequest method drives all subsequent ASP.NET Web processing.

Page developers can use the HttpRuntime class properties to find out information about the current application domain for diagnostic purposes, for example. Developers creating custom process pipeline or a custom hosting environment should call the ProcessRequest method from a class derived from the HttpWorkerRequest or SimpleWorkerRequest class.

The following example demonstrates how to get properties of the HttpRuntime class representing the current application domain and display them to the browser.

No code example is currently available or this language may not be supported.
<%@ Page Language="VJ#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">

  void Page_Load(Object sender, System.EventArgs e)
    StringBuilder sb = new StringBuilder();
    String nl = "<br />";

    sb.Append("AppDomainAppId = " + 
      HttpRuntime.get_AppDomainAppId() + nl);
    sb.Append("AppDomainAppPath = " + 
      HttpRuntime.get_AppDomainAppPath() + nl);
    sb.Append("AppDomainAppVirtualPath = " + 
      HttpRuntime.get_AppDomainAppVirtualPath() + nl);
    sb.Append("AppDomainId = " + 
      HttpRuntime.get_AppDomainId() + nl);
    sb.Append("AspInstallDirectory = " + 
      HttpRuntime.get_AspInstallDirectory() + nl);
    sb.Append("BinDirectory = " + 
      HttpRuntime.get_BinDirectory() + nl);
    sb.Append("ClrInstallDirectory = " + 
      HttpRuntime.get_ClrInstallDirectory() + nl);
    sb.Append("CodegenDir = " + 
      HttpRuntime.get_CodegenDir() + nl);
    sb.Append("IsOnUNCShare = " + 
      Convert.ToString(HttpRuntime.get_IsOnUNCShare()) + nl);
    sb.Append("MachineConfigurationDirectory = " + 
      HttpRuntime.get_MachineConfigurationDirectory() + nl);


<html xmlns="" >
    <title>HttpRuntime Example</title>
    <form id="Form1" runat="server">
      <asp:label id="label1" runat="server"/>

  • AspNetHostingPermission  for operating in a hosted environment. Demand value: LinkDemand; Permission value: Minimal.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 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, 1.1, 1.0