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# Err Msg: ?Invalid Command with FTP and CAPS LOCK On

Article ID: 112421

Article Last Modified on 10/31/2006

APPLIES TO

- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1

This article was previously published under Q112421

## SYMPTOMS

This error message appears when you type a Windows NT FTP client or Telnet command with the keyboard CAPS LOCK enabled:
?Invalid command

## CAUSE

Consistent with UNIX and TCP/IP commands, Windows NT FTP client commands are case sensitive.

## RESOLUTION

To correctly enter an FTP command, make sure the keyboard CAPS LOCK is not enabled and that you are typing commands with lowercase characters.

Additional query words: prodnt tcp err msg

Keywords: kbnetwork KB112421