Microsoft KB Archive/135524

= Diskeeper Version 1.0 Uninstall Causes Windows NT 3.51 to Hang =

Article ID: 135524

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q135524



SYMPTOMS
If you use the Executive Software Diskeeper 1.0 uninstall feature after you upgrade Windows NT 3.5 to 3.51 and restart your computer, you receive an entry point error in NTDLL.DLL and Windows NT hangs and becomes unbootable.

NOTE: Diskeeper for Windows NT is a disk defragmentation program for Windows NT 3.5.



CAUSE
Diskeeper version 1.0 is not designed to run under Windows NT 3.51.

When you install Diskeeper on Windows NT 3.5, Diskeeper replaces the following Windows NT system files with its own versions of these files: NTDLL.DLL, NTOSKRNL.EXE, FASTFAT.SYS, and NTFS.SYS. If you use the Diskeeper uninstall feature after you upgrade to Windows NT 3.51, Diskeeper replaces the Windows NT 3.51 versions of these files with the Windows NT 3.5 versions. These do not work with Windows NT 3.51.



RESOLUTION
Run the emergency repair disk (ERD) to recover your Windows NT 3.51 boot and system files. Do not run Diskeeper version 1.0 under Windows NT 3.51.

To prevent this problem when you upgrade from Windows NT 3.5 to 3.51, uninstall Diskeeper before you start the upgrade.

Diskeeper 1.01, which works with windows NT 3.51, is now available from Executive Software from the following locations:

Compuserve- GO EXECSOFT

wwearthlink.net\execsoft



MORE INFORMATION
This problem can also occur in NT 4.0 server and workstation. It is strongly recommended that customers read the Product Alert on ExecSoft's web site which is located at http://www.execsoft.com/pas/pa091796.htm.

The latest version of Diskeeper is version 2.0 for NT 4.0.

For additional information, contact Executive Software at:

Executive Software

701 North Brand Blvd., 6th Floor

Glendale, California, USA 91203-1242

Technical Support: (818) 547-2050

FAX: (818) 545-8801

Diskeeper is manufactured by Executive Software, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Additional query words: prodnt defrag utility defragmenter

Keywords: kb3rdparty KB135524

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