Copyright Information in this document is subject to change without notice and does not represent a commitment on the part of Microsoft Corporation. The software and/or databases described in this document are furnished under a license agreement or nondisclosure agreement. The software and/or databases may be used or copied only in accordance with the terms of the agreement. The purchaser may make one copy of the software for backup purposes. No part of this manual and/or database may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser's personal use, without the written permission of Microsoft Corporation. (C) Copyright Microsoft Corporation, 1985-1988. All rights reserved. Simultaneously published in the U.S. and Canada. Microsoft(R), MS(R), MS-DOS(R), CodeView(R), and Xenix(R) are registered trademarks. Microsoft documentation uses the term "OS/2" to refer to the OS/2 systems-Microsoft(R) Operating System/2 (MS(R)OS/2) and IBM(R) OS/2. Similarly, the term "DOS" refers to both the MS-DOS(R) and IBM Personal Computer DOS operating systems. The name of a specific operating system is used when it is necessary to note features that are unique to the system. IBM(R) is a registered trademark of the International Business Machines Corporation. Hercules(R) is a registered trademark and Hercules(R) InColor Card(TM) is a trademark of Hercules Computer Technology. Intel(R) is a registered trademark of Intel Corporation. Olivetti(R) is a registered trademark of Ing. C. Olivetti. PC/AT(R), PC/XT(R), and PS/2(R) are registered trademarks of the International Business Machines Corporation. Tandy(R) is a registered trademark of Tandy Corporation. UNIX(R) is a registered trademark of AT&T Bell Laboratories.