CONFIG.SYS - SET Statements

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Environment variables are stored by OS/2 in memory and can be called by any program. They are used by many programs to store information (for example, the install path) or some configuration information. If you want to see a list of all installed environment variables and their values, type "Set" in an OS/2 window. If the list is too long, you can redirect the screen output to a file, simply type this:

SET >output.txt

General Tips

Note that SET commands in CONFIG.SYS behave differently than when entered on the command line.

So, when you issue the following comands in a OS/2 session:

SET TEMP=C:\TMP
SET TMP=%TEMP%

you get:

TEMP=C:\TMP
TMP=C:\TMP

But, if you add the same lines to CONFIG.SYS:

SET TEMP=C:\TMP 
SET TMP=%TEMP%

you get:

TEMP=C:\TMP
TMP=%TEMP%

but not TMP=C:\TMP. The enviroment variable TMP now has the value composed by the letters "%", "T", "E", "M", "P", "%". For that reason, in CONFIG.SYS, you must write the values explicitly as follows:

SET TEMP=C:\TMP
SET TMP=C:\TMP

This is because variables are not expanded during CONFIG.SYS processing, but they are when run from a shell (command line).

Base Operating System

• COMSPEC
• COPYFROMFLOPPY
• C1
• DESKTOP
• DIRCMD - dir command options
• DPATH - search path for data files
• ENH_STRETCH - enhanced stretch-blitting
• ENH_SUSPEND - enhanced suspend option
• OS2_SHELL - command line shell
• PATH - search path for executable files

PM

• BACKGROUNDBITMAP
• BACKGROUNDBITMAP2
• BACKGROUNDBITMAPDELAY
• BACKGROUNDBITMAPDELAY2

Help Manager

• BOOKSHELF - help manager search path for book shelves
• CPREF
• GLOSSARY
• GPIREF
• WPSREF

Workplace Shell

• AUTOREFRESHFOLDERS - automatic refresh of folders
• AUTOSTART - autostart of objects

SOM

OS/2 SOM Set Statements.

• AVLSVRNAME
• SOMBASE
• SOMDDEBUG
• SOMDIR
• SOMDMESSAGELOG
• SOMDPORT
• SOMDTIMEOUT
• SOMIR
• SOMRUNTIME
• SOMSOCKETS
• SOMTHREADPEER

Programming Environments

Java Run-time

• CLASSPATH - Java run-time classpath

Networking

LAPS

• ADAPTER_NIF
• DLSINI
• DSPPATH
• ETC
• GREEXT
• HARDWAREBITBLT
• HOME
• HOSTNAME
• I18NDIR

Global Security Runtime

• IKEYMAN_HOME
• IKEYMAN40_HOME
• IKEYMAN50_HOME

• INIT_FILE_NAMES
• INIT_FILE_RANGES
• IPFC
• INCLUDE - Include directory to compilers.
• INFOPATH - Info files stored.
• IPF_KEYS - IPF key definitions.
• KEYS - command line history.
• LANG - country-specific settings.
• LANINSTEP
• LIB - Points to directories where lib files are stored.
• LIBC_HOOK_DLLS
• LIBRARY_PATH - EMX library path
• LOCPATH - Points to teh location of the language files.
• LOGFILES
• LOGNAME
• LOTUS_CLS - Lotus SmartSuite search path
• MGA - Matrox graphic cards directory
• MANPATH
• MENUSTYLE - context menu entries
• MENUSFOLLOWPOINTER - WarpCenter menu behavior
• MFSCACHE - mobile file sync

MM...

• MMBASE
• MMSTREAM
• MMREF - Defines which files should be shown in the Multimedia Programming Reference.
• MMTYPESEXTS
• MMVWRLOG
• MMWPSLOG
• MMYIELD
• NCDEBUG
• NETVIEW_PATH - Defines the path where the SystemView client is installed.
• NEWNOTEBOOKS
• NLSPATH
• NNTPSERVER
• NNTPSERVER
• NSPR_OS2_NO_HIRES_TIMER
• NOLARGENTEXEICON
• NWDBPATH
• OBJECTSNOOZETIME

PM_

• PM ASYNC FOCUS CHANGE
• PM_DYNAMIC_DRAG
• PM_ROLLUP_BUTTON
• PMREF

• PROGRAMS - Define the path for program installation.
• PROMPT - OS/2 session prompt appearance.
• PSIDATADIR
• PNHOSTNAME
• QT_PM_NO_DIVE
• QUEUE_SIZE_THRESHOLD
• RESTARTOBJECTS

• RUNWORKPLACE

WarpCenter

• SCCANBENUKED - Allows the Warpcenter to have a delete option on its context menu.
• SCFINDUTILITY - Use a different search program in the Warpcenter.
• SCKILLCONFIRMDISABLED - Avoid the "Are you sure ..." dialog if using the Warpcenter kill feature.
• SCKILLFEATUREENABLED - Enables Warpcenter window list Warpcenter Window List as an application killer.
• SCUSEPRETTYCLOCK - Change the look of the Warpcenter clock.

• SHAPIEXCEPTIONHANDLER
• SHELLEXCEPTIONHANDLER - Disable the WPS exception handler.
• SHELLHANDLESINC - Increases the number of file handles.

OS/2 SOM

SMADDSTAR

SET SMADDSTAR=1

SMCLASSES

SET SMCLASSES=Wptypes.idl

SMEMIT

SET SMEMIT=H;IH;C

SMINCLUDE

Defines the directories where the special SOM header files are stored.

SET SMINCLUDE=Paths

Parameters

Paths can be any full path or any relative path. If you use more than one path, the paths must be delimited by a semicolon.

SMNOTC

SET SMNOTC=1

SMTMP

Points to a directory used to store temporary files.

SET SMTMP=<path>

Parameters

Path can be any full path.

SMG_Path

This is used by the IBM AO-Manager.

SET SMG_Path=Path 

Value can be any full path. Relative paths are not allowed.

• SMG_Pl2Nlg - Used by the IBM AO-Manager.
• SOURCEPATH

• SRVNAME1 - Used for remote installations of OS/2.
• SWING_HOME - Swing run-time

• SYSTEM_INI - Tells the system the path and name of the System INI file.
• TCPLANG - Sets the Language for TCP/IP V4.x.
• TELNET.PASSWORD.ID - Sets a password for the telnet daemon (Telnetd).
• TEMP - Define a directory were OS/2 and programs can store temporarily files.
• TIMESYNC
• TMP - Define a directory were OS/2 and programs can store temporarily files.
• TMPDIR - Define a directory were OS/2 and programs can store temporarily files.
• TZ - Timezone information.
• ULSPATH
• USE_HOSTS_FIRST
• USER
• USER_INI
• VCFG_NO_DDC

VIO

• VIO_MGA
• VIO_SVGA

• VIDEO_DEVICES
• WPS_COMMUNICATION

Check also CONFIG.SYS - SET Statements (Additional software).