LANtastic and Zero-Length Files (79041)
The information in this article applies to:
• Microsoft MS-DOS operating system 3.3
• Microsoft MS-DOS operating system 4.0
• Microsoft MS-DOS operating system 4.01
• Microsoft MS-DOS operating system 5.0
• Microsoft MS-DOS operating system 5.0a
• Microsoft MS-DOS operating system 6.0
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.21
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q79041
When using the Artisoft LANtastic network operating system in conjunction
with applications that use file control blocks (FCBs), zero-length files
may result. Artisoft is aware of the problem and makes the following
• Use MS-DOS 3.3
• Do not use applications that use FCBs
• Do not open multiple files in applications that use FCBs
According to Artisoft, the zero-length files may result when an application
that uses FCBs opens, references, and closes multiple files, but the server
software still recognizes the files as being open.
FCBs are used in MS-DOS versions 1.x to maintain compatibility with CP/M.
In later versions of MS-DOS, file handles are commonly used to access files
rather than FCBs, although FCBs are still supported.
The LANtastic network supports multiple servers. For a workstation to act
as a server, it must simply run the server software on top of MS-DOS. No
proprietary operating system is needed.
The product included here is manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding the
product's performance or reliability.
"The MS-DOS Encyclopedia," Microsoft Press, 1988
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