Knowledge Base

File Write to Network Share Using MS-DOS 21h Function Fails

Article ID: 111027

Article Last Modified on 10/31/2006

Microsoft Windows NT Workstation 3.5
Microsoft Windows NT Server 3.5

This article was previously published under Q111027

SYMPTOMS

When you use MS-DOS function 21h to write to a file on a network share, the following error appears in the event log:

System Process - Lost Delayed-Write Data

The system was attempting to transfer file data from buffer to <network share>. The write operation failed, and only some of the data may have been written to the file.

STATUS

Microsoft has confirmed this to be a problem in Windows NT Workstation and Windows NT Server version 3.5. This problem was corrected in the latest U.S. Service Pack for Windows NT version 3.5. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K

Additional query words: prodnt

Keywords: kbnetwork KB111027