sos@psc90.UUCP (Steffan O'Sullivan) (07/10/90)
4DOS COMSPEC question: first, I use 4DOS rather than COMMAND.COM as my
primary shell. The question:
If I want to set COMSPEC equal to COMMAND.COM for exiting to DOS from
programs, will that cause a problem with 4DOS? I find COMMAND.COM
loads more quickly and smaller as a secondary shell, and is fine for the
times I need to go to shell from a program. But I don't want to cause
any problems with the normal 4DOS operation, and I'm not sure when
COMSPEC is called upon.
Any ideas on this?
-Steffan O'Sullivan sos@psc90.uucp (7/20: sos@oz.plymouth.edu)
Plymouth State College, NHsmithj@ohstpy.mps.ohio-state.edu (07/10/90)
In article <1437@psc90.UUCP>, sos@psc90.UUCP (Steffan O'Sullivan) writes: > 4DOS COMSPEC question: first, I use 4DOS rather than COMMAND.COM as my > primary shell. The question: > > If I want to set COMSPEC equal to COMMAND.COM for exiting to DOS from > programs, will that cause a problem with 4DOS? I find COMMAND.COM > loads more quickly and smaller as a secondary shell, and is fine for the > times I need to go to shell from a program. But I don't want to cause > any problems with the normal 4DOS operation, and I'm not sure when > COMSPEC is called upon. Although I may be wrong on this I think that COMSPEC is only used when a program tries to shell. To use it in the fashion you want the only solution I see is to use an alias or batch file to set COMSPEC and then reset it. Remember that 4DOS has a setlocal/endlocal pair to simplify this if you use a batch file. alias runprog set comspec=c:\dos\command^progcall %1 etc.^comspec=c:\4dos runprog.btm ----------- setlocal set comspec=c:\dos\command progcall %1 etc. endlocal If you don't currently use COMSPEC and want to leave it set permanently to COMMAND.COM I don't think it will cause any problems but I'm not sure. -- I knew how the game was going to end when I took Brenda into the filing room but I took her in anyway. --Al They have one big advantage over us: *they* know where they're going. --Batman Has your family tried 'em, Powdermilk? --Garrison Keillor /* Jeffery G. Smith, BS-RHIT (AKA Doc. Insomnia, WMHD-FM) * * The Ohio State University, Graduate Physics Program * * 3193 Smith Lab, Columbus, OH 43210 (614) 292-5321 * * smithj@ohstpy.mps.ohio-state.edu */
reisert@ricks.enet.dec.com (Jim Reisert) (07/10/90)
In article <1437@psc90.UUCP>, sos@psc90.UUCP (Steffan O'Sullivan) writes... > >If I want to set COMSPEC equal to COMMAND.COM for exiting to DOS from >programs, will that cause a problem with 4DOS? 4DOS is designed to support this. If there are any problems, they're bugs! >I find COMMAND.COM loads more quickly and smaller as a secondary shell Really? On my 386 it only takes 20K (with EMS swapping) to start a secondary 4DOS shell. If you're not using EMS swapping, milage may vary. jim =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= "The opinions expressed here in no way represent the views of Digital Equipment Corporation." James J. Reisert Internet: reisert@ricks.enet.dec.com Digital Equipment Corp. UUCP: ...decwrl!ricks.enet!reisert 77 Reed Road Hudson, MA 01749-2895
derek@sun4dts.dts.ine.philips.nl (derek) (07/16/90)
In article <1437@psc90.UUCP>, sos@psc90.UUCP (Steffan O'Sullivan) writes... >If I want to set COMSPEC equal to COMMAND.COM for exiting to DOS from >programs, will that cause a problem with 4DOS? >I find COMMAND.COM loads more quickly and smaller as a secondary shell Use 4dos286.exe (or 4dos88.exe) as the secondary shell. There is no swapping, but this loads as quickly as Command.com. Best Regard, Derek Carr DEREK@DTS.INE.PHILIPS.NL Philips I&E TQV-5 Eindhoven, The Netherlands Standard Disclaimers apply.