IPP in Windows 2000 Web-Based Print Submission

The Internet Printing Protocol (IPP) serves as the core communication standard in Microsoft Windows 2000 that enables users to locate, connect to, and submit print jobs to remote printers across an intranet or the Internet via standard web protocols. By bridging traditional local area network printing mechanisms with Internet Information Services (IIS), IPP transforms standard network printers into accessible web resources, allowing seamless print management and job submission without requiring complex network configurations.

In Windows 2000, IPP is implemented as an extension of the HTTP/1.1 protocol. Instead of relying on proprietary protocols like Server Message Block (SMB) or legacy standards like Line Printer Remote (LPR), IPP encapsulates printing commands and data streams directly inside HTTP requests. This design allows print traffic to move across standard web ports—port 80 for HTTP and port 443 for HTTPS—enabling print jobs to traverse corporate firewalls, proxy servers, and wide area networks without requiring administrators to open specialized networking ports.

Windows 2000 Server integrates IPP directly with IIS using an Internet Server Application Programming Interface (ISAPI) extension named msw3pr.dll. When a printer is shared on a Windows 2000 Server running IIS, the system automatically generates an accessible URL for that device, structured as http://<servername>/printers/<sharename>/.printer. When an incoming IPP request hits this URL, the ISAPI extension intercepts the HTTP-encapsulated data, decodes the print stream, and routes it directly to the local Windows Print Spooler service for physical processing.

For client systems, IPP streamlines device installation and driver distribution. A user running Windows 2000 can open a web browser, navigate to the server's printers page (http://<servername>/printers), view real-time status details such as paper levels and pending queues, and connect to a printer with a single click. Windows 2000 leverages Point and Print over HTTP, automatically downloading and installing the appropriate print drivers from the server to the client machine over the web connection. Once installed, the printer appears in the client's local Printers folder, allowing users to print directly from any standard Windows application as if the device were locally attached.

Security and access control in IPP print submission rely on native Windows 2000 and IIS security features. Print submissions can be secured using standard web authentication methods, including Basic, Integrated Windows Authentication (NTLM/Kerberos), or digital certificates. Furthermore, encrypting the connection with Secure Sockets Layer (SSL) ensures that sensitive document data remains protected against interception while in transit over public networks.