DOCUMENT:Q145797 20-FEB-2002 [iis] TITLE :No User Account Authentication Appears in Internet Explorer PRODUCT :Internet Information Server PROD/VER::1.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server version 1.0 ------------------------------------------------------------------------------- SYMPTOMS ======== After you set up the Internet Information Server 1.0 FTP server and try to connect to the server using Internet Explorer, a Windows NT user account authentication dialog box does not appear. Instead, the following error message appears: The attempt to load 'ftp://' failed. CAUSE ===== This problem occurs if you clear the Allow Anonymous Connection check box for the FTP server in Internet Information Server and disable the Internet Guest account. WORKAROUND ========== To work around this problem, enter the user account information in the following format: ftp://:@ STATUS ====== Microsoft has confirmed this to be a problem in Internet Information Server version 1.0 and Microsoft Internet Explorer versions 1.5 and 2.0. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. MORE INFORMATION ================ Then the Allow Anonymous Connection check box is cleared, Windows NT passwords are sent to the server without encryption. Therefore, users are required to enter valid Windows NT user names and passwords to log onto the FTP service. This check box is checked by default for security reasons. Additional query words: prodiis ====================================================================== Keywords : kbnetwork Technology : kbiisSearch kbiis100 Version : :1.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.