How To Disable Long Filename Support on FAT Partitions

 Last reviewed: May 15, 1997
Article ID: Q116342

The information in this article applies to:
  • Microsoft Windows NT Workstation version 3.5
  • Microsoft Windows NT Server version 3.5

SUMMARY

In some situations, it may be desirable to remove the ability to create long filenames on FAT partitions in Windows NT 3.5, such as if MS-DOS based disk utilities are used regularly on the machine. Some MS-DOS based disk utilities, such as DiskFix (part of PC Tools), may either eliminate the long filenames created from Windows NT or actually delete the files with long names.

MORE INFORMATION

To remove the ability to create long filenames on FAT, use the Registry Editor (REGEDT32.EXE). Under the HKEY_LOCAL_MACHINE Key, use the following path: 

   \SYSTEM\CurrentControlSet\Control\FileSystem\Win31FileSystem
Change the entry to 1 and long filename support on FAT will be disabled when you reboot your machine. To re-enable it, change the entry back to 0.

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

Additional query words: prodnt pc tools lfn 8.3
Keywords : kbother ntfilesys
Version : 3.5
Platform : WINDOWS

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Last reviewed: May 15, 1997
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