FTPSVC: Delay Receiving FTP Directory Annotation and Prompt (133280)
The information in this article applies to:
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Server 3.51
This article was previously published under Q133280 SYMPTOMS
When you logon to a very busy Windows NT 3.51 ftp server, you experience a
delay receiving the directory annotation and ftp prompt (after you enter
your password).
Network Performance Monitor (PERFMON.EXE) shows the number of ftp server
current connections increasing, but the number of anonymous users logged on
decreasing. The system normally recovers within a few minutes.
CAUSE
The FTP service was modified for Windows NT version 3.51 to provide
directory annotation of the ftp root directory at logon. The calls used to
do this annotation involved unnecessary file locking, especially when no
~ftpsvc~.ckm (directory annotation) file existed in the ftp root directory.
RESOLUTION
To correct this problem, install the latest U.S. Service Pack for Windows
NT version 3.51.
Microsoft corrected this problem in the modified file, FTPSVC.DLL. This fix
improves logon performance by optimizing the directory annotation code so
it does less file locking.
NOTE: This fix was tested on ftp.microsoft.com, which performs over 50,000
anonymous ftp logons per day.
STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51.
This problem has been corrected in the latest U.S. Service Pack for Windows
NT version 3.51. For information on obtaining the Service Pack, query on
the following word in the Microsoft Knowledge Base (without the spaces):
| Modification Type: | Major | Last Reviewed: | 10/30/2003 |
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| Keywords: | kbnetwork KB133280 |
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