ProcessInfo Class

Provides information on processes currently executing.

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

public class ProcessInfo
public class ProcessInfo
public class ProcessInfo
Not applicable.

This class returns information about ASP.NET worker processes that are running under the ASP.NET process model. Objects of this type are returned by the static methods ProcessModelInfo.GetCurrentProcessInfo and ProcessModelInfo.GetHistory. These methods are the only useful ways to create an initialized object.


If you are using Microsoft Internet Information Services (IIS) 6.0, process metrics returned by the ProcessInfo classes are available only if you are running in IIS 5.0 isolation mode. If you are using IIS 6.0 in worker process isolation mode, the ASP.NET process model is disabled and an HttpException exception is thrown when you access ProcessInfo members.

The following code example demonstrates using the Age, PeakMemoryUsed, ProcessID, RequestCount, ShutdownReason, StartTime and Status properties of the ProcessInfo class. The example displays a LinkButton. When the LinkButton is clicked, the current process information is displayed.

<%@ Page language="c#" AutoEventWireup="false" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns="" >
    <title>ASP.NET Example</title>
<script language="c#" runat="server">     
      void GetProcessInfo(Object sender, EventArgs e) 
        ProcessInfo pi;

        // Get the current process information.
        pi = ProcessModelInfo.GetCurrentProcessInfo();

        Literal1.Text = "<p>Age: " + pi.Age + "</p>";
        Literal1.Text += "<p>PeakMemoryUsed: " + pi.PeakMemoryUsed + "</p>";
        Literal1.Text += "<p>ProcessID: " + pi.ProcessID + "</p>";
        Literal1.Text += "<p>RequestCount: " + pi.RequestCount + "</p>";
        Literal1.Text += "<p>ShutdownReason: " + pi.ShutdownReason + "</p>";
        Literal1.Text += "<p>StartTime: " + pi.StartTime + "</p>";
        Literal1.Text += "<p>Status: " + pi.Status + "</p>";
    <form id="WebForm1" method="post" runat="server">
      <asp:button id="Button1" OnClick="GetProcessInfo" runat="server" Text="Get Process Info"></asp:button>
      <asp:Literal id="Literal1" runat="server"></asp:Literal>

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

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