No Document Icon for File with Document Filename Extension

 Last reviewed: May 7, 1997
Article ID: Q101652

The information in this article applies to:
  • Microsoft Windows NT operating system version 3.1
  • Microsoft Windows NT Advanced Server version 3.1

SYMPTOMS

In a directory window in File Manager, a file does not have the correct icon that indicates it is a document even though it has a filename extension that corresponds to a document.

CAUSE

This problem occurs because the Registry includes a four-letter filename extension in the HKEY_CLASSES_ROOT subtree. Due to a bug in File Manager, it stops searching after it processes a four-letter (or longer) filename extension.

RESOLUTION

In the HKEY_CLASSES_ROOT subtree, remove any four-letter (or longer) filename extensions. 

   CAUTION: Filename extensions are always prefixed with a period (.).
   Key names not prefixed with a period are not file extensions; do
   not delete them.

Additional query words: prodnt
Keywords : kbbug3.10 kbother ntfilesys
Version : 3.1
Platform : WINDOWS

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Last reviewed: May 7, 1997
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