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Microsoft KB Archive/100160

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Knowledge Base

ACC: System Error When Sharing Database on LAN Man/Workgroups

Article ID: 100160

Article Last Modified on 5/6/2003


  • Microsoft Access 1.0 Standard Edition
  • Microsoft Access 1.1 Standard Edition
  • Microsoft Access 2.0 Standard Edition

This article was previously published under Q100160


Advanced: Requires expert coding, interoperability, and multiuser skills.

If you try to save a Microsoft Access database larger than 2000 bytes (approximately 2 MB) on a Microsoft LAN Manager server with a boot drive that uses the file allocation table (FAT) format, the following error message appears:

System error... Network error on drive <x>

This error occurs only on Microsoft Windows for Workgroups workstations if you attempt to open a database already in use by a Microsoft LAN Manager workstation or another Windows for Workgroups workstation.


The Microsoft LAN Manager server responds incorrectly to a request by Windows for Workgroups to share the file. The server responds with a message that is too long for Windows for Workgroups to process correctly, resulting in an error from the NetBIOS.


The following are two ways to work around this behavior:

  • Change the format of the Microsoft LAN Manager server boot drive from FAT to high-performance file system (HPFS), then place the Microsoft Access database you want to share on the boot drive.


  • Move the database to a Windows for Workgroups server.

Additional query words: w4w fat hpfs netbios boot drive

Keywords: kbprb kbusage KB100160