DOS Command Fcbs
Syntax:FCBS=(number)
Purpose: Used in the CONFIG.SYS file to specify the number of file-control blocks (FCBs) for file sharing.
Discussion
You should only include an FCBs in your CONFIG.SYS if the program you are using requires it. Most newer programs do not use FCBs.Option
number - Specifies the maximum number (1 to 255) of open FCBs that a program can use. The default is 4.This page is from http://www.easydos.com. I pasted it on my website to avoid possible broken links. For further help with DOS commands, Check easydos.com out.