Windows NT 4.0 ESSENTIAL
FREE Upgrades + Fixes

ALL downloads featured here are on my •MUST HAVE• list, also found in SOFTWARE.TXT, part of my Windows 9x/NT4/2000/ME/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 + DOS 7.xx/8.00 ©Tricks + Secrets files [W95-11D.EXE], FREEware.

IMPORTANT : ALWAYS BACKUP FIRST ! Some of these files are archived in ZIP, RAR, 7Z or CAB format ➜ you need a file decompression (unZIPping/unARChiving/unRARing) tool to extract their contents ➜ I recommend [free(ware)]: Windows 9x/NTx users: File Shrinkers 32-bit + 64-bit. Windows/WfWG 3.1x users: Info-ZIP WiZ 16-bit. DOS/MS-DOS/FreeDOS/DR-DOS/OpenDOS users: DOS ZIP/unZIP 16-bit tools. STAY SAFE ➜ Scan for viruses ALL files downloaded from the Internet! Target Operating System(s)/software/hardware REQUIRED for installing upgrades/patches/fixes/drivers! Installing Windows OS components/upgrades/patches/fixes/drivers/tools may require you to be logged on with Administrative/Power User/Sysadmin privileges. Windows Vista/2008/7/8/8.1/2012/10/2016/2019/11/2022 users ➜ right-click each file ➜ select "Run as Administrator" (temporary fix) or disable User Account Control (UAC) (permanent fix) in: Windows 10/2016/2019/11/2022. Windows 8/2012/8.1/2012 R2. Windows 7/2008 R2. Windows Vista/2008. User Account Control (UAC) tweaking tools [free(ware)]: UAC Pass. UAC Tweak. TweakUAC. Disable UAC. FYI: MDGx Tweaked + Customized File Manager (FM) installer FMNT32.EXE (free) also installs "Disable User Account Control (UAC)" + "Enable User Account Control (UAC)" items to Desktop right-click shell context menu ➜ for details open TAKEOWN.INF + TAKEOWN.REG (both in C:\FileMan) using Notepad or better Notepad replacement [free(ware)]. NEWest at the top ➜ OLDest at the bottom. Items labeled as "discontinued!" ➜ obsolete, unmaintained +/- abandoned. Most all software featured here is free(ware) ➜ Freeware, Free +/- Open Source. I do not recommend any shareware/trialware/retail programs, except the few essentials on my •MUST HAVE• list, and only if I could not find any free(ware) alternative. Most unofficial Windows OSes (Hot)Fixes, Packs + Updates created using official Microsoft IEAK (INF + SED) installer toolkit (free). Check back often for NEW tools + UPDATEs. Please let me know if you discover any broken links. Thanks. Enjoy.

Jump to [separate pages]:
• WINDOWS NEW TECHNOLOGY (NT) 4.0 ESSENTIAL FREE UPGRADES + FIXES [this page]
• SOFTWARE ESSENTIALS: FREE UPGRADES + FIXES
• FREE WINDOWS 9x/NT/2000/ME/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 ESSENTIAL SYSTEM COMPONENTS + ADD-ONS
• INTERNET EXPLORER (IE) 4/5/6/7/8/9/10 ESSENTIAL FREE FIXES + UPDATES
• WINDOWS MEDIA PLAYER (WMP) 6/7/8/9/10/11/12 ESSENTIAL FREE FIXES + UPDATES
• FREE WINDOWS NT4/2000/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 (NTx) EXTRAS
• DIRECTX (DX) ESSENTIAL FREE UPGRADES, FIXES + TOOLS
• 1000+ Windows 9x/NT/2000/ME/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 POWER TOYS
• SPEED-UP + BENCHMARK TOOLS
• DISK PARTITIONING, FORMATTING, BACKUP + RECOVERY TOOLS
• Free(ware) WinDOwS Games
• Get Anti-Viral: Protect Yourself !
• FREE WWW/FTP, HTML + GIF/JPG Publishing Tools
• My DownLoads
• FREEbies: Free(ware) SOFTWARE SITES

WINDOWS NEW TECHNOLOGY (NT) 4.0
ESSENTIAL FREE UPGRADES + FIXES

Updates | NT4 SP6a | NT4 Links

• NT 4.0 Links: Windows NT 4.0 Info + Updates on the Internet:
  • Windows Updates for Legacy Operating Systems (WULOS) CD-ROM/DVD-ROM ISO images [95/98SE/ME + NT4/2000/XP/Vista]
    Operating System CD-ROM/DVD-ROM ISO images [all 9x/NTx OSes]
  • Microsoft Windows NT 4.0 Server Resource Kit (RK).
    More details.
  • Microsoft Windows NT 4.0 Option Pack (OP).
  • MSKB: How to enable Plug and Play in Windows NT 4.0.
  • MSKB: Tips for Troubleshooting Windows NT 4.0 Installation Problems.
  • Microsoft ßUG reports + Hotfix requests.
  • Microsoft Hotfix Request Form.
  • Windows NT 4.0 Service Pack + Hotfix Reference.
  • Unofficial Windows NT 4.0 Drivers + Tools (French).
  • Unofficial Windows NT 4.0 Patches & Updates Guide.
  • Windows NT4 Resources.
  • Windows NT4 SP6a USB Drivers.
  • Floppy driver patch for NT4/2000/XP (free).
  • SmoothText (a.k.a. ClearType) for Windows NT4/2000 (free).
  • Automatic NT4 Logon (freeware).
  • Windows NT 4.0 MSKB Reference.

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Windows NT 4.0 Post-SP6a Updates + Fixes

• Microsoft Windows NT 4.0 SP6a OLE Automation OLEAUT32.DLL 2.40.4520.0 Security Vulnerability Fix:
  Direct download [1.43 MB, English].
  MUST reboot into Safe Mode → copy OLEAUT32.DLL from C:\Program Files\Microsoft Visual Studio\VB98\WIZARDS\PDWIZARD\REDIST\NT4 [default] to %windir%\SYSTEM32 [%windir% = usually C:\WINNT] and to %windir%\SYSTEM32\DLLCACHE (if any) → reboot normal!
  More info.

• Unofficial Windows 95/OSR1/OSR2/98/98 SP1/98 SE/NT4/ME TZ Environment Variable Errors MSVCRT.DLL 6.1.9848.0 Fix:
  Direct download [240 KB, English].

• Unofficial Windows NT 4.0 256 Colors Icons Explorer EXPLORER.EXE 4.0.1381.7096 Fix (English):
  • EXPLORER.EXE Fix for Windows NT 4.0 with MS IE 4/5 with Active Desktop (View As Web Page) [199 KB].
  • EXPLORER.EXE Fix for Windows NT 4.0 without MS IE 4/5 with Active Desktop (View As Web Page) [170 KB].
  More info.
  BUG + FIX: MUST use INUSE.EXE 1.30 in order to uninstall ANY system files already in use!
  Inuse 1.30 [23 KB].

• Unofficial Windows NT 4.0 SP6a Microsoft Foundation Classes (MFC) Security Vulnerability Fix:
  Direct download [812 KB, English].

• Unofficial Windows NT4/2000/XP/2003 SERVICES Update:
  Direct download [107 KB, English].

• Unofficial Windows NT 4.0 SP6a WMF Graphics Rendering Engine (GRE) GDI32.DLL Security Vulnerability Fix (English):
  • WinNT4 Workstation + Server GDI32.DLL 4.0.1381.7271 Fix [180 KB].
  • WinNT4 Terminal Server GDI32.DLL 4.0.1381.33567 Fix [180 KB].
  MouseTrap WMF BUG detection tool (freeware).
  More info.

• Unofficial Windows 98/98 SP1/98 SE/NT4 SP6a/ME Hyperlink Object HLINK.DLL 5.2.3790.2748 Security Vulnerability Fix:
  • HyperLink Fix [159 KB, English].
  • HyperLink Fix [163 KB, Polish].

• Unofficial Windows 98/98 SP1/98 SE/NT4+SP6a/ME Embedded Web Fonts T2EMBED.DLL 5.00.2195.7348 Security Vulnerability Fix:
  Direct download [178 KB, English].
  Requires MS IE 5.5 SP2 or newer already installed!
  More info.

• Microsoft Windows NT 4.0 SP6a License Logging LLSSRV.EXE Security Vulnerability Fix:
  Direct download [122 KB, English].

• Microsoft Windows NT 4.0 Server SP6a Cursor + Icon Handling USER32.DLL + WIN32K.SYS Security Vulnerability Fix:
  Direct download [960 KB, English].

• Microsoft Windows NT 4.0 Server WINS WINS.EXE Security Vulnerability Fix:
  Direct download [159 KB, English].

• Microsoft Windows NT 4.0 Server Kernel and LSASS NTKRNLMP.EXE + NTOSKRNL.EXE Security Vulnerability Fix:
  Direct download [670 KB, English].

• Microsoft Windows NT 4.0 Server HyperTerminal HYPERTRM.DLL Security Vulnerability Fix:
  Direct download [226 KB, English].

• Microsoft Windows NT 4.0 Server DHCP DHCPSSVC.DLL Security Vulnerability Fix:
  Direct download [126 KB, English].

• Microsoft Windows NT 4.0 Server WORDPAD.EXE + MSWD6_32.WPC Security Vulnerability Fix:
  Direct download [232 KB, English].
  A MUST: Word Converter Registry Fix!

• Microsoft Windows NT 4.0 SP6a Shell Remote Code Execution SHELL32.DLL, SHLWAPI.DLL + GRPCONV.EXE Security Vulnerability Fix:
  Direct download [1.32 MB, English].
  BUG: Stop Error after installing this Fix!
  BUG: This SHELL32.DLL fix breaks the ability of removing annoying arrows from Desktop shortcut icons!
  FIX: See "PATCHED SHELL32.DLL BUG + FIX", also in TIPS98.TXT (part of W95-11D.EXE), for complete details.

• Microsoft Windows NT 4.0 SP6a + Option Pack (OP) Remote Code Execution NNTPFS.DLL + NNTPSVC.DLL Security Vulnerability Fix:
  Direct download [867 KB, English].

• Microsoft Windows NT 4.0 Server SP6a Remote Code Execution GDI32.DLL, USER32.DLL, WINSRV.DLL, NTKRNLMP.EXE, NTOSKRNL.EXE + WIN32K.SYS Security Vulnerability Fix:
  Direct download [1.51 MB, English].

• Microsoft Windows NT 4.0 Server SP6a NetDDE Remote Code Execution NDDENB32.DLL + NETDDE.EXE Security Vulnerability Fix:
  Direct download [132 KB, English].

• Microsoft Windows NT 4.0 Server SP6a RPC Disclosure + Denial of Service OLE32.DLL, RPCRT4.DLL + RPCSS.EXE Security Vulnerability Fix:
  Direct download [561 KB, English].

• Microsoft Windows NT 4.0 SP6a + IIS 4.0 ASP.DLL, HTTPODBC.DLL, IISLOG.DLL, INFOCOMM.DLL, ISCOMLOG.DLL, W3SVC.DLL, WAM.DLL, SSINC.DLL, SSPIFILT.DLL + ADSIIS.DLL Security Vulnerability Fix:
  Direct download [980 KB, English].

• Microsoft Windows NT 4.0 SP6a POSIX PSXSS.EXE Security Vulnerability Fix (English):
  • WinNT4 SP6a Server Fix [117 KB].
  • WinNT4 SP6a Workstation Fix [117 KB].

• Microsoft Windows NT 4.0 SP6a RPC/DCOM Cumulative Security Vulnerability Fix (English):
  • WinNT4 SP6a Server Fix [567 KB].
  • WinNT4 SP6a Workstation Fix [567 KB].
  VIRUS ALERT!
  Symantec Blaster Worm Removal Guide.
  Symantec Blaster Worm Removal Tool.
  GRC DCOMbobulator disables DCOM and closes port 135.
  Microsoft DCOM Scan tool v1.0 for Windows NT4/2000/XP/2003 scans networks to identify host computers WITHOUT RPC Buffer Overrun Fix installed:
  DCOM Scan [226 KB, English].

• Microsoft Windows NT 4.0 SP6a CALLCONT.DLL, CRYPT32.DLL, CRYPTDLG.DLL, GDI32.DLL, H323MSP.DLL, IPNATHLP.DLL, MF3216.DLL, MSASN1.DLL, MSGINA.DLL, MST120.DLL, NMCOM.DLL, RTCDLL.DLL, SCHANNEL.DLL, SOFTPUB.DLL + H323.TSP Security Vulnerability Fix (English):
  • WinNT4 SP6a Server Fix [2.08 MB].
  • WinNT4 SP6a Workstation Fix [2.08 MB].
  VIRUS ALERT!
  Symantec Sasser Worm Removal Guide.
  Symantec Sasser Worm Removal Tool.
  Microsoft Sasser Worm Removal Tool.

• Microsoft Windows NT 4.0 SP6a Multiple Networks Errors MSGSVC.DLL, NETAPI32.DLL, WKSSVC.DLL + MUP.SYS Fix (English):
  • WinNT4 SP6a Server Fix [328 KB].
  • WinNT4 SP6a Workstation Fix [328 KB].
  Install this Fix AFTER the Help + Support Center Fix below!

• Microsoft Windows NT 4.0 SP6a Messenger Service Buffer Overrun MSGSVC.DLL, NETAPI32.DLL, WKSSVC.DLL + MUP.SYS Security Vulnerability Fix (English):
  • WinNT4 SP6a Server Fix [579 KB].
  • WinNT4 SP6a Workstation Fix [579 KB].

• Microsoft Windows NT 4.0 Server NetBIOS Flaw NETBT.SYS Security Vulnerability Fix:
  Direct download [292 KB, English].
  More info.

• Microsoft Windows NT 4.0 Server Flaw KERNEL32.DLL Security Vulnerability Fix:
  Direct download [449 KB, English].
  More info.

• Microsoft Windows NT 4.0 Named Pipes Connection Error NPFS.SYS Fix:
  Direct download [196 KB, English].

• Microsoft Windows NT 4.0 SMB Buffer Overrun SRV.SYS Security Vulnerability Fix:
  Direct download [408 KB, English].
  More info.

• Microsoft Windows NT 4.0 + IIS 4.0 Web Server Unchecked Buffer NTDLL.DLL Security Vulnerability Fix:
  Direct download [491 KB, English].
  More info.

• Microsoft Windows NT 4.0 Indexing Services Cross Site Scripting WEBHITS.DLL Security Vulnerability Fix:
  Direct download [561 KB, English].
  More info.

• Microsoft Windows NT 4.0 Locator Service Unchecked Buffer LOCATOR.EXE Security Vulnerability Fix:
  Direct download [221 KB, English].
  More info.

• Microsoft Windows NT4/2000 100 MB Networks High Rate Collisions Registry Fix.

• Microsoft Windows NT 4.0 Certificate Flaw Deletion SPMSG.DLL + XENROLL.DLL Security Vulnerability Fix:
  Direct download [268 KB, English].
  More info.

• Microsoft Windows NT 4.0 DoS Unchecked SMB Buffer XACTSRV.DLL Security Vulnerability Fix:
  Direct download [160 KB, English].
  More info.

• Microsoft Windows NT 4.0 Server RAS Phonebook Buffer Overrun RASAPI32.DLL, RASDLG.DLL + RASSAPI.DLL Security Vulnerability Fix (English):
  • WinNT4 Fix [593 KB].
  • WinNT4 + RASS Fix [632 KB].
  More info.

• Microsoft Windows NT 4.0 Debugger Authentication Flaw Security Vulnerability Fix:
  Direct download [109 KB, English].
  More info.

• Microsoft Windows NT 4.0 SNMP Unchecked Buffer SNMP.EXE + SNMPAPI.DLL Security Vulnerability Fix:
  Direct download [159 KB, English].
  More info.

• Microsoft Windows NT 4.0/98/98 SP1/98 SE System Preparation Tools NT4PREP.EXE (WinNT4) + W98PREP.EXE (Win98/98 SP1/98 SE) allow Windows NT4/98/98 SP1/98 SE automated OS install/deployment on more than 1 computer:
  Direct download [2.5 MB, English].

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Windows NT 4.0 Service Pack 6.0a (SP6a)

• NT 4.0 SP6a: Microsoft Windows NT 4.0 Service Pack 6.0a (SP6a) + 128-bit SSL encryption installs ALL previously released OS + Service Packs Fixes + Updates (English):
  More info:
  NT4 SP6a 128-bit SSL or FTP [34.5 MB].
  NT4 SP6a requires 2-36 MB of disk space depending on system configuration.
  NT4 SP6a 128-bit SSL Debug Symbols [53.3 MB].
  NT4 SP6a 128-bit SSL ReadMe.
  NT4 SP6a System Requirements.
  NT4 SP6a FAQ.
  More info.
  Even more info.
  List of BUGs Fixed in NT4 SP6/NT4 SP6a - Part 1.
  List of BUGs Fixed in NT4 SP6/NT4 SP6a - Part 2.
  Microsoft Windows NT 4.0 Post-SP6a Security Rollup Package (SRP):
  NT4 Post-SP6a SRP [14.1 MB].
  Compaq Smart Array Controllers users MUST also install this CPQARRAY.SYS Fix!
  Microsoft Windows NT 4.0 Post-SP6a Log Off Hang WINLOGON.EXE Fix:
  NT4 Post-SP6a WINLOGON.EXE Fix [249 KB].
  Microsoft Windows NT 4.0 Post-SP6a Winsock Fails Without Administrator Rights AFD.SYS Fix:
  NT4 Post-SP6a AFD.SYS Fix [135 KB].

• See these topics for more CRITICAL UPDATES:
  • "WINDOWS 9x/NT/2000/ME/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 ESSENTIAL SYSTEM COMPONENTS + ADD-ONS".
  • "DIRECTX (DX) ESSENTIAL FREE UPGRADES, FIXES + TOOLS".
  • "INTERNET EXPLORER (IE) 4/5/6/7/8/9/10 ESSENTIAL FREE FIXES + UPDATES".
  • "WINDOWS MEDIA PLAYER (WMP) 6/7/8/9/10/11/12 ESSENTIAL FREE FIXES + UPDATES".
  • "FREE WINDOWS NT4/2000/XP/2003/Vista/2008/7/8/8.1/2012/10/2016 (NTx) EXTRAS".

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©1996-2021 MDGx (a.k.a. AXCEL216): Everything here is FREEware. Always free of ad(vertisment)s, cookies, tracking, malware + spyware. I have created [August 1996], maintain and update these web pages entirely by hand using Programmer's File Editor [replaced Notepad]. I do not promote, speak in the behalf of, advertise or work for any computing, technology, news or internet profit business. All ©copyrights and ®registered ™trademarks retain owners' property.