Invalid Characters Allowed When Creating File Association

 Last reviewed: August 8, 1996
Article ID: Q132660
The information in this article applies to:
  • Microsoft Windows 95
  • Microsoft Windows NT Server version 4.0
  • Microsoft Windows NT Workstation version 4.0

SYMPTOMS

You can type invalid extension characters when you are creating or modifying a file association.

CAUSE

The File Types tab in the Options dialog box does not validate the characters you type.

RESOLUTION

Do not use spaces or special characters in an extension when you are creating or modifying a file association. Special characters you should not use in extensions include: 

   <
   >
   |
   \
   /
   :
   ;
   *
   ?
   "

STATUS

Microsoft is researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

KBCategory: kbui
KBSubcategory: ntui prodnt svrwksta posfest win95
Additional reference words: 4.00 4.0 95

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Last reviewed: August 8, 1996
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