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              Microsoft Windows NT 4.0 Workstation and Server
                            U.S. Service Pack 1
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Contents
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1.0  Introduction
2.0  Installation Instructions for the Windows NT 4.0 U.S. Service Pack 1
2.1  User Notes
2.2  List of Bugs Fixed in Windows NT 4.0 U.S. Service Pack 1

1.0  Introduction
-----------------
This release of Microsoft(R) Windows NT(TM) 4.0 U.S. Service Pack 1 is
easy to apply from within Windows NT and changes only those files that
were originally set up on the Windows NT Workstation or Windows NT Server
system.  Service Pack releases are cumulative: they contain all previous
fixes, as well as any new fixes made to the system.


2.0  Installation Instructions for the Windows NT U.S. Service Pack
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Installing the Service Pack from a CD-ROM:
1.  Insert the Service Pack CD-ROM disk into the CD-ROM drive.
2.  At the Windows NT Command Prompt, change to that CD-ROM drive, then
    change to the i386, MIPS, ALPHA, or PPC directory (depending upon 
    whether you have an Intel(TM), MIPS(R), ALPHA AXP(TM) or PowerPC(R) 
    CPU), and type UPDATE.
3.  Follow the instructions given on the screen.

Installing the Service Pack from a network drive:
1.  At the Windows NT Command Prompt, type the command to connect to the
    network drive on which the Service Pack files reside.
2.  Change to that network drive and type UPDATE.
3.  Follow the instructions given on the screen.


2.1  User Notes
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*** Emergency Repair Disk

If it is necessary to use the Windows NT Emergency Repair Disk to repair
your Windows NT system at some time after you apply the Service Pack, you
will need to re-apply the Service Pack after the repair is completed.  This
is because the Emergency Repair Disk repairs your system by restoring your
original Windows NT setup.  After the repair has completed, simply follow
the above Installation Instructions to reapply the Service Pack.


*** Adding New Components to the System

If new software or hardware components are changed or added to your system
after you have applied the Service Pack, it will be necessary to reapply
the Service Pack.  This is because the files taken from the original
Windows NT disk set may not be equivalent to the files on the Service Pack
disk set.  It is not possible to install new components directly from the
Service Pack media (such as a new keyboard or printer driver).  New
components must be installed from the original product media.


*** Installing Symbol Files from the CD-ROM

To install the symbol files corresponding to the new binaries in Service
Pack 1, do the following (assuming your CD-ROM drive is D:, your symbol
files are located in the C:\WINNT\SYMBOLS directory, and you are installing
the files for an x86 machine):

    XCOPY /S /U /D D:\SUPPORT\DEBUG\I386\SYMBOLS C:\WINNT\SYMBOLS

This will copy the Service Pack 1 .DBG files over the existing versions of
these files.  The XCOPY command shown will copy only those .DBG files that
are already installed (/U switch), and only those with a more recent time-
date stamp (/D switch).


2.2  List of Bugs Fixed in Windows NT 4.0 U.S. Service Pack 1
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NOTE: Use the Qxxxxxx number that precedes the title of the bug fix to
query the Microsoft Knowledge Base to find an article about that bug.

Service Pack 1
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 Q78303: Intermittent File Corruption Problem
Q142653: STOP Message Occurs Calling GetThreadContext/SetThreadContext
Q142654: Winsock Memory Access Violation in Ws2help.dll Or Msafd.dll
Q142655: Stop Message Appears After Deleting ProductOption Registry Key
Q142656: Internet Explorer 3.0 on RISC Computer Cannot Connect to Host
Q142657: Data Corruption on Windows NT 4.0
Q142658: Internet Information Server Runs Out of Memory
Q142659: Internet Explorer 2.0 Fails To Check the Country Code/Language
Q149903: File Manager Performs a Move Instead of a Copy
Q156832: STOP Message when IBM Warp Client Connects to Windows NT 4.0