Summary of OS/2 CONFIG.SYS directives:

BREAK      ON|OFF                    │  PAUSEONERROR YES|NO
BUFFERS    4-99                      │  PRIORITY     ABSOLUTE|DYNAMIC
CODEPAGE   primary[,secondary]       │  PROTECTONLY  YES|NO
COUNTRY    countrycode               │  PROTSHELL    shell,cmdprocessor
DEVICE     pathname                  │  REM          any text
DEVINFO    devtype,subtype,pathname  │  RMSIZE       0-640 (KB)
DISKCACHE  64-6900 (KB)              │  RUN          pathname
FCBS       maximum,protected         │  SET          environmentname=value
IFS        pathname                  │  SHELL        pathname
IOPL       YES|NO                    │  SWAPPATH     drive:[path]
IOPL       pathname[,pathname...]    │  THREADS      16-256
LIBPATH    path[;path...]            │  TIMESLICE    min,max (msec)
MAXWAIT    1-255 (seconds)           │  TRACE        ON|OFF [event[,event...]]
MEMMAN     SWAP|NOSWAP,MOVE|NOMOVE   │  TRACEBUF     1-63 (KB)

