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- Path: sparky!uunet!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu
- From: jbodnar@ccwf.cc.utexas.edu (John Bodnar)
- Newsgroups: comp.os.os2.misc
- Subject: Re: LOADHIGH: How does it work in OS/2 (simulated DOS) ?
- Message-ID: <85586@ut-emx.uucp>
- Date: 19 Dec 92 13:31:17 GMT
- References: <1992Dec15.051839.12892@midway.uchicago.edu>
- Sender: root@ut-emx.uucp
- Reply-To: jbodnar@ccwf.cc.utexas.edu (John Bodnar)
- Organization: The University of Texas at Austin, Austin TX
- Lines: 39
-
- According to pynq@midway.uchicago.edu:
- >I am an old hand at using QEMM's loadhi commands, but I don't understand
- >the loadhigh command in OS/2's simulated DOS. How does it work?
- >What can be loaded high? How can you tell what is loaded high?
- >
- >It looks like it is patterned after the LOADHIGH in DOS 5.0, which I
- >never learned anything about. (I always thought DOS 5.0 was a crude
- >imitation/hack of DOS 3.31 with QEMM)
-
- Yes, the LOADHIGH in OS/2 v2.0 is patterned after that in DOS 5.0, meaning
- that it's dumb. You cannot specify regions into which you want a
- particular program loaded.
-
- OS/2 does give you a bigger UMB than DOS 5.0 which should eliminate some
- problems. To use LOADHIGH just do the following...
-
- for TSRs:
-
- lh progname
-
- for DEVICE DRIVERS:
-
- under the DOS settings for a specific program object, add a line to the
- DOS_DEVICE setting, such as...
-
- C:\UTIL\DOSDEVICE.SYS /parm1 /parm2 /etc
-
- Please note that certain device drivers cannot be added in this way. An
- example would be the RAMDRIVE.SYS that comes with DOS 5.0. It is a block
- device driver and cannot be created in a VDM.
-
- I'm not sure about this, but if you need to use a driver like this, and it
- does not work in a VDM, you could add a DEVICE= line to your CONFIG.SYS
- file. I think OS/2 will then load the device into all VDMs.
- --
- John Bodnar : Friends don't let friends use Windows!
- The University of Texas at Austin : But I'm still waiting for Microsoft
- Internet: jbodnar@ccwf.cc.utexas.edu : Solitaire NT! Heaven forbid, another
- UUCP: ....!cs.utexas!ut-ccwf!jbodnar : productive user of OS/2 v2.0!
-