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Operating System Windows 2000 Terminal Services Printer Redirection

Operating System Windows 2000 Terminal Services Printer Redirection


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Operating System

Windows 2000 Terminal Services Printer Redirection

White Paper
Abstract

This white paper describes the Microsoft® Windows® 2000 operating system Terminal Server Remote Desktop Protocol Device Redirection for Printing Devices feature, including design, implementation, performance, and scalability issues. The printer redirection architecture on the server and client side is presented. This white paper assumes you are using Windows 2000 Service Pack 2 and the RDP-based client version 5.0.

© 2002 Microsoft Corporation. All rights reserved. The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This White Paper is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS DOCUMENT. Microsoft, Windows, Windows NT, and Windows 2000 are either registered trademarks or trademarks of Microsoft Corporation. The names of actual companies and products mentioned herein may be the trademarks of their respective owners. Microsoft Corporation • One Microsoft Way • Redmond, WA 98052-6399 •USA 10/2002

Contents


White Paper 1

Introduction 1

Introduction 1

Printer Redirection in Windows 2000 1

Printer Redirection in Windows 2000 1

Standards and Additional Reading 2

Standards and Additional Reading 2

printer Redirection Fundamentals 3

printer Redirection Fundamentals 3

RDP Fundamentals 3

RDP Fundamentals 3

RDP Thin Client Fundamentals 4

RDP Thin Client Fundamentals 4

Terminal Services Virtual Channels API 4

Terminal Services Virtual Channels API 4

Configuring Printer Redirection 5

Configuring Printer Redirection 5

Configuring Client Settings 5

Disabling Virtual Channels 5

Overview 7

Overview 7

Printer Queues 7

Printer Queues 7

Automatic Printer Queues 7

Automatic Printer Queues 7

Automatic Printer Naming Convention 7

Manual Printer Queues 8

Manual Printer Queues 8

Attaching to a printer port with TSxxx: 8

Driver String Mapping for Printer Queues 9

Driver String Mapping for Printer Queues 9

Printer Redirection Scenarios: Driver Name Mismatch 9

Printer Redirection Scenarios: Driver Name Mismatch 9

Scenario 1 9

Scenario 2 9

Scenario 3 11

Printer Redirection Error Events 11

Printer Redirection Error Events 11

Common problems 11

Common problems 11

Printer Driver Mapping 11

Printer Driver Mapping 11

Driver String Name Mapping Scenario 12

Driver Errors on Terminal Server 14

Driver Errors on Terminal Server 14

Managing pools of drivers between TS servers in a farm 15

Managing pools of drivers between TS servers in a farm 15

Performance and scalability 15

Performance and scalability 15

Bandwidth Performance Results 15

Bandwidth Performance Results 15

Explanation of Bandwidth Performance Results 16

Scalability Performance Results 17

Scalability Performance Results 17

Test Environment 17

Scalability Test Results 17


Explanation of Scalability Performance Results 18

Printer Redirection Architecture Overview 18

Printer Redirection Architecture Overview 18

Remote Printer Creation 19

Remote Printer Creation 19

Printing Process 19

Printing Process 19

Remote Printer Deletion 20

Remote Printer Deletion 20

printer Redirection Components 20

printer Redirection Components 20

RDPDR 20

RDPDR 20


Winlogon 21

Winlogon 21

Spooler 21

Spooler 21

USBMON 22

USBMON 22

MSTSCAX 22

MSTSCAX 22

Printer Redirection Session Connection 23

Printer Redirection Session Connection 23

printer Redirection Connection and disconnection Process 23

printer Redirection Connection and disconnection Process 23

Details of Session Connect: 23

Printer Redirection Session Disconnection 26

Printer Redirection Session Disconnection 26

Details of Session Disconnect/Logoff 26

Printer I/O Sequence 27

Printer I/O Sequence 27

Details of Printer I/O Sequence 27

Printer queues Creation Process 28

Printer queues Creation Process 28

Automatic Queue Configuration Changes 28

Automatic Queue Configuration Changes 28

Details of Queue Configuration Changes 29

Manual Printer Queues 31

Manual Printer Queues 31

Details of Manual Printer Queues 31

REFERENCES 32

REFERENCES 32


Introduction



Terminal Services (TS) has been part of the Windows operating system since the release of Microsoft® Windows® 2000 Server.

The Terminal Services version built on Windows NT 4.0 was a completely separate product from standard versions of Windows NT 4.0 Server. This approach presented two major challenges:



  • Customers using standard Windows NT 4.0 Server could not use it in a Terminal Services scenario.

  • Security and other fixes for this product were released on their own schedule, sometimes well after the equivalent releases for the base Windows NT 4.0 operating system.

In Windows 2000, Terminal Services is a selectable option in the Server versions of the OS (Server, Advanced Server, and Datacenter). The multi-user kernel extensions, originally developed for Windows NT Server 4.0, Terminal Server Edition, were enhanced and fully integrated as a standard part of the Windows 2000 Server kernel.
The Terminal Services component of the Microsoft® Windows® 2000 Server operating system can deliver the Windows 2000 desktop, as well as the latest Windows-based applications, to virtually any desktop computing device, including those that cannot run Windows. This capability lets more people in an organization take advantage of the resources provided by a distributed computing environment. Terminal Services can also be used to remotely administer a Windows 2000-based server. You can learn more about specific features and benefits and obtain information to guide your Terminal Services deployment by accessing the Terminal Services home page at http://www.microsoft.com/terminalserver.
This document assumes that you have a

general

understanding of Terminal Services architecture and implementation practices. General (lot. generalis - umumiy, bosh) - qurolli kuchlardagi harbiy unvon (daraja). Dastlab, 16-a.da Fransiyada joriy qilingan. Rossiyada 17-a.ning 2-yarmidan maʼlum. Oʻzbekiston qurolli kuchlarida G. The features discussed in this white paper are specific to Windows 2000 Server Service Pack 2 and version 5.0 of the Remote Desktop Protocol (RDP) Terminal Services client.
The purpose of this document is to describe the fundamental workings of local printer redirection in Terminal Services by examining the architecture on both client and server that makes this feature work, as well as to explore best practices and methodologies for troubleshooting and dealing with issues that may arise when using this feature.

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