This article is part one of a categorized listing of article numbers for bugs that were fixed in Windows NT 4.0 Service Pack 6/6a.

Service packs are cumulative. This means that the bugs fixed in a service pack are also fixed in subsequent service packs. Click the number that precedes the title of the bug fix to view the article about that bug. In addition to the bugs listed below, the latest service pack for Windows NT Server 4.0, Terminal Server Edition, fixes the problems that are listed in the following article in the Microsoft Knowledge Base: For more information about how to obtain the latest service pack for Windows NT 4.0 and Terminal Server Edition, click the following article number to view the article in the Microsoft Knowledge Base:

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Differences between Service Pack 6a and Service Pack 6

Windows NT Service Pack 6a was released to fix specific issues in Service Pack 6.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: Windows NT 4.0 Service Pack 6a also contains the Service Pack 6 fixes that are listed below.

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Base Operating System

173191 (http://support.microsoft.com/kb/173191/EN-US/) Inserting an Excel Worksheet Object May Fail Under Windows NT
184232 (http://support.microsoft.com/kb/184232/EN-US/) DCOMCNFG Saves Incorrect Display Name in Services
215367 (http://support.microsoft.com/kb/215367/EN-US/) Win32 API Function GetEffectiveRightsFromAcl() Returns Incorrect Access Mask Value
216051 (http://support.microsoft.com/kb/216051/EN-US/) FIX: DCOMCNFG NT 4.0 SP4 Does Not Write .exe Name under HKCR\APPID
216913 (http://support.microsoft.com/kb/216913/EN-US/) BIOS Date Value Does Not Immediately Update on January 1, 2000
222515 (http://support.microsoft.com/kb/222515/EN-US/) WIN16 API GetFreeSpace Returns Zero on a Computer with More than 2 GB of Memory
223275 (http://support.microsoft.com/kb/223275/EN-US/) Computer Stops or Hangs Due to Large System Environment Variable Values
224345 (http://support.microsoft.com/kb/224345/EN-US/) Spooler Service May Leak Private Bytes Attempting to Close a Remote Printer
224837 (http://support.microsoft.com/kb/224837/EN-US/) DCOM Clients Ping Server After Client Program Has Shut Down
224982 (http://support.microsoft.com/kb/224982/EN-US/) Err Msg: STOP 0x0000001e {0xc000005, 0xa1000aa7, 0x0, 0x00440194} in Win32k.sys
225251 (http://support.microsoft.com/kb/225251/EN-US/) MS-DOS Application May Cause STOP: 0x0000001E
225333 (http://support.microsoft.com/kb/225333/EN-US/) FIX: Clussvc.exe Hits 100% CPU Utilization When Doing a Group Failover
226535 (http://support.microsoft.com/kb/226535/EN-US/) Access Denied Error Occurs if the Roaming Profile Is Saved to a NetWare Server
228792 (http://support.microsoft.com/kb/228792/EN-US/) Stop 0x1e in NTFS After Changing Disk On Removable Drive
229607 (http://support.microsoft.com/kb/229607/EN-US/) File Corruption Occurs on an NTFS Volume with More Than 4 Million Files
229650 (http://support.microsoft.com/kb/229650/EN-US/) STOP 0x0000001E in Win32k.sys When Running Findfast.exe
230784 (http://support.microsoft.com/kb/230784/EN-US/) NTVDM May Stop Responding After Quitting 16-Bit Programs
231622 (http://support.microsoft.com/kb/231622/EN-US/) Long Names of Local or Global Groups Truncated in Group Memberships Dialog Box
231944 (http://support.microsoft.com/kb/231944/EN-US/) NumLock Key State Is Not Saved When You Log Off
231949 (http://support.microsoft.com/kb/231949/EN-US/) AMD CPUID Check for the AMD Athlon Chip Now Allows Write-Combining Feature
231976 (http://support.microsoft.com/kb/231976/EN-US/) Disk Full Broadcast When Accessing Virtual CD-ROM Folder
232225 (http://support.microsoft.com/kb/232225/EN-US/)Winmsd.exe May Cause an Access Violation if Path Is Greater Than 517 Characters
232230 (http://support.microsoft.com/kb/232230/EN-US/) Jobs Not Printed When Print Server Is Busy
232275 (http://support.microsoft.com/kb/232275/EN-US/) Multithreaded Write Routine May Cause Data Corruption on FAT Partition
232733 (http://support.microsoft.com/kb/232733/EN-US/) Process Working Set Trimmed Below Minimum Unnecessarily
233349 (http://support.microsoft.com/kb/233349/EN-US/) Cluster Service Issues Event 1015 Every Four Hours After Applying SP5
234339 (http://support.microsoft.com/kb/234339/EN-US/) Volume Lock Request Does Not Release Volume After File Operation
234359 (http://support.microsoft.com/kb/234359/EN-US/) Structured Storage Code Can Go into an Infinite Loop
234655 (http://support.microsoft.com/kb/234655/EN-US/) Err Msg: Unable to Log You on Because the Netlogon Service Is Not Running
234658 (http://support.microsoft.com/kb/234658/EN-US/) STOP 0xC000021A in CSRSS After Attempting to Free an Already Freed Screen Buffer
235250 (http://support.microsoft.com/kb/235250/EN-US/) I/O May Be Performed at the Wrong Offset with Files Larger than 4 GB
235409 (http://support.microsoft.com/kb/235409/EN-US/) SCSI Port Driver Logical Unit Number Count Not Updated Correctly
235445 (http://support.microsoft.com/kb/235445/EN-US/) Seven Fonts Not Supporting the Euro Currency Symbol
235519 (http://support.microsoft.com/kb/235519/EN-US/) ASP Performance Monitor Chart Settings Not Read Properly From PMC File
235614 (http://support.microsoft.com/kb/235614/EN-US/) Windows NT 4.0 SP6 Includes Fixes for Stress-Induced Issues
235700 (http://support.microsoft.com/kb/235700/EN-US/) ActiveX Property Pages May Appear Erased and Hang Program
235999 (http://support.microsoft.com/kb/235999/EN-US/) Savedump Does Not Write Event Log Message with Event ID 1000
236360 (http://support.microsoft.com/kb/236360/EN-US/) Cluster Server Slows Down or Hangs When Running Resource Monitor
236466 (http://support.microsoft.com/kb/236466/EN-US/) Computer Hangs After Installing Checked Service Pack 5
236595 (http://support.microsoft.com/kb/236595/EN-US/) NTFS Deadlock During Writethrough Caching
236813 (http://support.microsoft.com/kb/236813/EN-US/) %HOMEPATH% and %HOMESHARE% Are Resolved Incorrectly
236944 (http://support.microsoft.com/kb/236944/EN-US/) Write Protect Error Occurs After Program Is Run from Floppy Disk
236964 (http://support.microsoft.com/kb/236964/EN-US/) Delayed Return of Paged Pool Causes Error 1450 "Insufficient Resources"
236981 (http://support.microsoft.com/kb/236981/EN-US/) STOP 0x0000000A Involving Scsiport.sys in Windows NT 4.0 SP5
237706 (http://support.microsoft.com/kb/237706/EN-US/) Memory Leak May Lead to Loss of User Profile
237780 (http://support.microsoft.com/kb/237780/EN-US/) GDI Subsystem Stops Responding (Hangs) and Returns Error Message in VGA Mode
237842 (http://support.microsoft.com/kb/237842/EN-US/) NTVDM May Switch to Uppercase After Running a 32-Bit Program
237955 (http://support.microsoft.com/kb/237955/EN-US/) STOP 0x0000001e in Win32k.sys
238009 (http://support.microsoft.com/kb/238009/EN-US/) Loss of Connection with Node Persists Until Node Is Restarted
238173 (http://support.microsoft.com/kb/238173/EN-US/) Quorum Checkpoint File May Be Corrupted at Shutdown
238244 (http://support.microsoft.com/kb/238244/EN-US/) Partition Utilities Do Not Recognize Hard Drive Partitions
238891 (http://support.microsoft.com/kb/238891/EN-US/) Service Pack 6 Updates Windows NT Kernel to Support Future Processors
239789 (http://support.microsoft.com/kb/239789/EN-US/) Access Violation Error Message with Program that Uses the DdeAddData() Function
239929 (http://support.microsoft.com/kb/239929/EN-US/) Compaq HALs (Including Revision G) for Alpha with Windows NT 4.0
240076 (http://support.microsoft.com/kb/240076/EN-US/) Windows NT 4.0 Client Not Receiving New Policy in Windows 2000 Domain
240740 (http://support.microsoft.com/kb/240740/EN-US/) Overflow from NtGdiAddFontResourceW Returning Uninitialized Pool
241040 (http://support.microsoft.com/kb/241040/EN-US/) Daylight Saving Time Change Not Applied Immediately on Some Multiple-Processor Computers
241387 (http://support.microsoft.com/kb/241387/EN-US/) Error Message: "STOP 0x0000001E: KMODE_EXCEPTION_NOT_HANDLED" with Accessible Event Watcher
241393 (http://support.microsoft.com/kb/241393/EN-US/) Page Heap Enhancements for Advanced Debugging in Windows NT4.0
241535 (http://support.microsoft.com/kb/241535/EN-US/) Updated Support for MSAA Features in Windows NT 4.0 SP6
242013 (http://support.microsoft.com/kb/242013/EN-US/) Non-Administrators Can Modify Profile Locations in Windows NT Registry
242176 (http://support.microsoft.com/kb/242176/EN-US/) Error Message: A Chain of Certs Didn't Chain as They Should in a Certain Application of Chaining
242283 (http://support.microsoft.com/kb/242283/EN-US/) 16-Bit Programs Hang Using Dynamic Data Exchange
242386 (http://support.microsoft.com/kb/242386/EN-US/) Cluster Does Not Log Event on Resource Monitor Failure
242510 (http://support.microsoft.com/kb/242510/EN-US/) Calling the SetEntriesInAcl() Function Generates Error Message 87 ("ERROR_INVALID_PARAMETER")
242583 (http://support.microsoft.com/kb/242583/EN-US/) Resrcmon Leaks Handles When a Generic Program Resource Is Taken Online or Offline

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Internet Authentication Service (IAS)

193490 (http://support.microsoft.com/kb/193490/EN-US/) Cannot Set Radius DSN on Alpha Computer
194956 (http://support.microsoft.com/kb/194956/EN-US/) Forward Slash (/) Incorrectly Rejected by IAS Profile Tab
194957 (http://support.microsoft.com/kb/194957/EN-US/) Internet Authentication Service (IAS) Vendor-Specific Attributes Do Not Work
195051 (http://support.microsoft.com/kb/195051/EN-US/) IAS Does Not Log Ascend Attribute 255 Correctly
197506 (http://support.microsoft.com/kb/197506/EN-US/) IAS Incorrectly Validates User Accounts
221196 (http://support.microsoft.com/kb/221196/EN-US/) Radius Cannot Re-Establish a Connection to ODBC Data Source
241400 (http://support.microsoft.com/kb/241400/EN-US/) IAS Hangs When Configured as Radius Client for Windows 2000

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Internet Information Services (IIS)

188352 (http://support.microsoft.com/kb/188352/EN-US/) ASP Caching May Cause "Server Too Busy" Errors and Blank Pages
193612 (http://support.microsoft.com/kb/193612/EN-US/) Log Files Rolled Over According to GMT, Not Local Time Zone
217763 (http://support.microsoft.com/kb/217763/EN-US/) File Access Vulnerability in Personal Web Server
218880 (http://support.microsoft.com/kb/218880/EN-US/) ASP Request.BinaryRead Method Causes 100 Percent CPU Utilization
221514 (http://support.microsoft.com/kb/221514/EN-US/) HSE_REQ_GET_CERT_INFO_EX Is Not Exposed in ISAPI ServerSupportFunction()
223137 (http://support.microsoft.com/kb/223137/EN-US/) IIS 4.0 Log Field May Contain Invalid Constant Time Field
224298 (http://support.microsoft.com/kb/224298/EN-US/) HTML Page Sent to a Browser May Be Truncated
230335 (http://support.microsoft.com/kb/230335/EN-US/) Dates May Be Displayed Improperly Using Configuration Back-Up Option in IIS 4.0 HTML Administrator
236565 (http://support.microsoft.com/kb/236565/EN-US/) TCP Connections Not Released by IIS
236936 (http://support.microsoft.com/kb/236936/EN-US/) Removing SSL Key Leaves Behind Undeletable Port
237873 (http://support.microsoft.com/kb/237873/EN-US/) Err Msg: Overlapped I/O Error

238631 (http://support.microsoft.com/kb/238631/EN-US/) NTLM Password Change Fails When Password Contains an Ampersand
239543 VBScript Error Message Browsing with Internet Explorer 5 in ISM (HTML)
241112 (http://support.microsoft.com/kb/241112/EN-US/) ISAPI Filter Cannot be Removed Using HTMLA
242001 (http://support.microsoft.com/kb/242001/EN-US/) Error 53 Error Message When You Try to Connect to a Windows 2000 Domain-Based DFS Share

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Microsoft Message Queue Server (MSMQ)

241525 (http://support.microsoft.com/kb/241525/EN-US/) Duplicate Transactional Messages Sent by MSMQ
241744 (http://support.microsoft.com/kb/241744/EN-US/) FIX: Journal Property for Private Queues Cannot be Updated from MSMQ ActiveX Components
241749 (http://support.microsoft.com/kb/241749/EN-US/) FIX: MSMQ ActiveX Component Receive Fails When Receiving a Message
241751 (http://support.microsoft.com/kb/241751/EN-US/) FIX: MSMQ AttachCurrentSecurityContext Calls May Leak Memory
241755 (http://support.microsoft.com/kb/241755/EN-US/) FIX: MSMQ: GetStreamedObject and GetStoredObject Return Error with VT_UNKNOWN
241765 (http://support.microsoft.com/kb/241765/EN-US/) FIX: MSMQ ActiveX Receive Fails Due To Bad SenderID Length
241771 (http://support.microsoft.com/kb/241771/EN-US/) FIX: IsWorldReadable and MSMQ Window Handle Leaks
241772 (http://support.microsoft.com/kb/241772/EN-US/) FIX: MSMQ LookupQueue returns MQ_ERROR_ILLEGAL_PROPERTY

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Microsoft Transaction Server (MTS)

232330 (http://support.microsoft.com/kb/232330/EN-US/) FIX: MTS Explorer Crashes When Configured the Machine Uses Remote DTC
232343 (http://support.microsoft.com/kb/232343/EN-US/) FIX: XA Transaction Monitors May Show Inconsistent Outcome
232348 (http://support.microsoft.com/kb/232348/EN-US/) FIX: DTC's XA RM Incorrectly Returns No More Transaction to Recover
232351 (http://support.microsoft.com/kb/232351/EN-US/) FIX: Repeated Load and Unload of Mtxdm.dll Causes 1MB Virtual Memory Leak
232533 (http://support.microsoft.com/kb/232533/EN-US/) FIX: DTC Log Notification Problem Leaves Transactions Incomplete

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Other

226369 (http://support.microsoft.com/kb/226369/EN-US/) Windows NT Does Not Detect Media Change on ATAPI PD CD-ROM Drive
228734 (http://support.microsoft.com/kb/228734/EN-US/) Windows NT Does Not Boot with Highly Fragmented MFT
229722 (http://support.microsoft.com/kb/229722/EN-US/) German Compound Word Not Found if Part of the Word Is in the Noise Word List
231855 (http://support.microsoft.com/kb/231855/EN-US/) Wordpad.exe May Delete a File With Read Only Permissions While Saving a File With Save As
231930 (http://support.microsoft.com/kb/231930/EN-US/) Non-US Locales Cause Index Server Queries to Not Work
235284 (http://support.microsoft.com/kb/235284/EN-US/) MPPE Keys Not Handled Correctly for a 128-Bit MS-CHAP Request
236610 (http://support.microsoft.com/kb/236610/EN-US/) DirectPlay 6.1a Launches Stable Multiplayer Game Connections
236940 (http://support.microsoft.com/kb/236940/EN-US/) Problems with ATAPI Multiple-LUN Devices
237373 (http://support.microsoft.com/kb/237373/EN-US/) In Page I/O Error Message When Attempting to Install Service Pack 4
239655 (http://support.microsoft.com/kb/239655/EN-US/) Event ID 4224 Jet Errors in WINS
239715 (http://support.microsoft.com/kb/239715/EN-US/) Radius Does Not Proxy Digital Signatures, MS-CHAP v2 Requests or Allow Cross-Forest Authentication
240087 (http://support.microsoft.com/kb/240087/EN-US/) Restoring NTBackup Sets Generated by Faulty SP4 Tandqic.sys
241042 (http://support.microsoft.com/kb/241042/EN-US/) Access to ProfileList Key Restricted with Service Pack 6
242521 (http://support.microsoft.com/kb/242521/EN-US/) Error Message: SetPrivilege on Account Failed

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Printing

102721 (http://support.microsoft.com/kb/102721/EN-US/) Err Msg: Windows NT Could Not Start Because the Following File Is Missing or Corrupt: \%Winnt%\System32\Config\SystemHardware Profile/Last Known Good Menu
223791 (http://support.microsoft.com/kb/223791/EN-US/) Spooler Service LPR Monitor Leaks Memory with Each Event 2004 Error
223863 (http://support.microsoft.com/kb/223863/EN-US/) Spooler Service May Leak Memory Attempting to Close Print Processor
230157 (http://support.microsoft.com/kb/230157/EN-US/) Margins Not Correct with HP 4si Printer in Windows NT 4.0 Service Pack 4
237181 (http://support.microsoft.com/kb/237181/EN-US/) Some LPD Print Servers Reject an LPD Connection from Windows NT
237420 (http://support.microsoft.com/kb/237420/EN-US/) LPR Command to Remote Printer on RAS Connection Does Not Work
238330 (http://support.microsoft.com/kb/238330/EN-US/) Add Printer Wizard Offers More Printer Selections in SP6
239070 (http://support.microsoft.com/kb/239070/EN-US/) Print Output Takes More Space After Installing Windows NT SP4
241311 (http://support.microsoft.com/kb/241311/EN-US/) Text After an Embedded Object May Be Printed with Some Blank Characters
241863 (http://support.microsoft.com/kb/241863/EN-US/) Lexmark 4226 Model 302 Printer Driver Included in Service Pack 6
242034 (http://support.microsoft.com/kb/242034/EN-US/) Error Message on a Blue Screen When Printing to Lexmark Optra with Far East Versions of Windows NT 4.0 Service Pack 5
242035 (http://support.microsoft.com/kb/242035/EN-US/) Printer Pooling Improvements in Windows NT 4.0 Service Pack 6
242587 (http://support.microsoft.com/kb/242587/EN-US/) Narrow Font Printing from Access with Japanese Windows NT 4.0 Service Pack 4 or 5

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For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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