Editing CONFIG.SYS (section)

=== K{{nbnd}}M ===
;{{anchor|KEYBOARD}} {{mono|1=KEYBOARD}} {{nobold|(PTS-DOS only)}} : Specifies the keyboard layout.
;{{anchor|KEYBUF}} {{mono|1=KEYBUF}} {{nobold|(FreeDOS only)}} : Specifies the address of the relocated keyboard buffer.
;{{anchor|LASTDRIVE}} {{mono|1=LASTDRIVE}} {{nobold|(DOS 3.0 and DOS&nbsp;Plus 2.1 with FIDDLOAD and DR&nbsp;DOS 3.31 and higher; OS/2<ref group="nb" name="since2"/><ref group="nb" name="pts"/>)}} : Specifies the maximum of drives that can be accessed.
;{{anchor|LASTDRIVEHIGH}} {{mono|1=LASTDRIVEHIGH}} {{nobold|(MS-DOS 7.0<ref name="Microsoft_1995_CONFIG"/> and DR-DOS 7.02 and higher,<ref name="Paul_1997_OD-A3"/> and FreeDOS only)}} : Same as LASTDRIVE, but explicitly loads the Current Directory Structure (CDS) into upper memory.
;{{anchor|LIBPATH}} {{mono|1=LIBPATH}} {{nobold|(OS/2<ref group="nb" name="since2"/> only)}} : Specifies a list of search paths for DLLs.
;{{anchor|LOADFIX}} {{mono|1=LOADFIX}} {{nobold|(PTS-DOS only)}} : Specifies how old programs should be handled.
;{{anchor|LOCKS}} {{mono|1=LOCKS}} {{nobold|(PTS-DOS only)}} : Specifies number of file locks.
;{{anchor|LOGO}} {{mono|1=LOGO}} {{nobold|(MS-DOS 7.0 and higher and PTS-DOS only, ignored under DR-DOS 7.02 and higher)}} : Configures boot logo support under MS-DOS. Allows to display startup message in conjunction with PTS-DOS boot manager.
;{{anchor|LPT1}} {{mono|1=LPT1}} {{nobold|(DR-DOS 7.02 and higher only)}} : Defines count and logical order and configures I/O address and timeout for [[LPT1]]: device.<ref name="Paul_1997_OD-A3"/>
;{{anchor|LPT2}} {{mono|1=LPT2}} {{nobold|(DR-DOS 7.02 and higher only)}} : Defines count and logical order and configures I/O address and timeout for [[LPT2]]: device.<ref name="Paul_1997_OD-A3"/>
;{{anchor|LPT3}} {{mono|1=LPT3}} {{nobold|(DR-DOS 7.02 and higher only)}} : Defines count and logical order and configures I/O address and timeout for [[LPT3]]: device.<ref name="Paul_1997_OD-A3"/>
;{{anchor|LPT4}} {{mono|1=LPT4}} {{nobold|(some versions of DR-DOS 7.02 and higher only<ref name="Paul_1997_OD-A3"/>)}} : Enables, defines count and logical order and configures I/O address and timeout for [[LPT4]]: device.
;{{anchor|MAXWAIT}} {{mono|1=MAXWAIT}} {{nobold|(OS/2<ref group="nb" name="since2"/> only)}} : Specifies time before a waiting process gets a higher priority.
;{{anchor|MEMMAN}} {{mono|1=MEMMAN}} {{nobold|(OS/2<!-- at least since 1.3 --> only)}} : Configures memory allocation strategy
;{{anchor|MEMORY}} {{mono|1=MEMORY}} {{nobold|(PTS-DOS only)}} : Specifies the default DOS memory allocation strategy.
;{{anchor|MENU}} {{mono|1=MENU}} {{nobold|(FreeDOS only)}} : Defines menu options.
;{{anchor|MENUCOLOR}} {{mono|1=MENUCOLOR}} {{nobold|(DOS 6.0 and higher, not DR&nbsp;DOS, not FreeDOS)}} : Specifies menu colors. (Can be emulated using {{mono|1=ECHO}} under DR-DOS.)
;{{anchor|MENUDEFAULT}} {{mono|1=MENUDEFAULT}} {{nobold|(DOS 6.0 and higher and FreeDOS, not DR&nbsp;DOS)}} : Specifies the default menu block. (Can be emulated using {{mono|1=TIMEOUT}} and {{mono|1=SWITCH}} under DR-DOS.)
;{{anchor|MENUITEM}} {{mono|1=MENUITEM}} {{nobold|(DOS 6.0 and higher, not DR&nbsp;DOS, not FreeDOS)}} : Specifies a menu block. (Can be emulated using {{mono|1=ECHO}} and {{mono|1=SWITCH}} under DR-DOS.)
;{{anchor|MULTITRACK}} {{mono|1=MULTITRACK}} {{nobold|(DOS 4.0 and DR-DOS 7.02 and higher;<ref name="Paul_1997_OD-A3"/> ignored under PTS-DOS)}} : Specifies whether multitrack disk operations are used or not.
;{{anchor|NEWFILE}} {{mono|1=NEWFILE}} {{nobold|(Datalight ROM-DOS only)}} : Continues CONFIG.SYS processing in new file (similar to DR-DOS [[#CHAIN|CHAIN]]) and optionally after loading a specific device driver and setting [[%NEWFILE%]] environment variable.<ref name="Datalight_2005_ROM-DOS"/>