Err Msg: Overlapped I/O Error

ID: Q237873

The information in this article applies to:

Microsoft Internet Information Server version 4.0

SYMPTOMS

During authentication, if the account is locked out and the Internet Information Server (IIS) computer is logging to an ODBC database, the following error message occurs:

Overlapped I/O error

This error message is incorrect. Users should receive an error message stating that their user accounts have been locked out.

CAUSE

The authentication error that the account has been locked out is being reset by a pending I/O error returned from an asynchronous write to the IIS log. This causes the incorrect error message to occur.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:

http://www.microsoft.com/windows/servicepacks/

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

STATUS

Microsoft has confirmed this to be a problem in Internet Information Server 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 6.

Additional query words:

Keywords : NT4SP6Fix
Version : winnt:4.0
Platform : winnt
Issue type : kbbug