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PRB: How to Resolve "Too Many Files Open" Error

This article was previously published under Q87690
A "Too many files open" error occurs.
On both the server and workstation computers, do the following to addressthis situation:

  1. Check the FILES statement in the CONFIG.SYS file to ensure that it does not contain any spaces and that there are enough files specified (FILES=60 is a good starting point).
  2. In a Novell network environment, check the FILE HANDLES statement in either the SHELL.CFG or the NET.CFG, depending on your installation (for example, FILE HANDLES=80).

    NOTE: The location of the SHELL or NET.CFG file is critical in a network environment. The file MUST be in the same directory as the IPXODI driver. If it is NOT in the same directory, the FILE HANDLES statement will NOT be processed. Novell governs the number of files open by the FILE HANDLES statement independently of the MS-DOS FILES statement. A FILES setting of 100 is usually more than adequate, but in any case, the combination of the FILES statement AND the FILE HANDLES statement in the *.CFG file should NOT exceed the MS-DOS limit of 255. The combination of the two values is cumulative.

    This error may also occur when running the Microsoft Client software for Netware, under Windows 95. This occurs because this client software does not support Novell's Network Directory Services. In order to get support for these services, download MSNDS.EXE from one of Microsoft's on-line resources.
  3. If the AUTOEXEC.BAT file loads the MS-DOS SHARE utility, modify the F and L parameters to specify a greater number of files and locks (for example, SHARE /F:5120 /L:500).

    /F: Allocates file space for the MS-DOS storage area used to record file-sharing information. The default value is 2040.

    /L: Sets the number of files that can be locked at one time. The default value is 20.

    NOTE: By using the MS-DOS INSTALL command, SHARE may be loaded in the CONFIG.SYS file instead of AUTOEXEC.BAT. Be sure to check both files to determine if SHARE has been loaded.
  4. If the system has less than 4 megabytes of random-access memory (RAM), try remarking out the disk cache. To do this for SMARTDRV.EXE, place "REM " (without the quotation marks) in front of the line that loads SMARTDRV.EXE in the AUTOEXEC.BAT file.
NOTE: When you run the FoxPro for DOS product in Windows NT, you need tomake the preceding changes to the Autoexec.nt and Config.nt files. Thesefiles are located in the \WINNT\SYSTEM32 directory.
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Article ID: 87690 - Last Review: 09/01/2006 09:48:49 - Revision: 3.1

  • Microsoft Visual FoxPro 3.0 Standard Edition
  • Microsoft Visual FoxPro 5.0 Standard Edition
  • Microsoft FoxPro 2.0
  • Microsoft FoxPro 2.5b for MS-DOS
  • Microsoft FoxPro 2.5b
  • kbenv KB87690