Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!yale!cs.utexas.edu!tut.cis.ohio-state.edu!att!dptg!pegasus!dmt From: dmt@pegasus.ATT.COM (Dave Tutelman) Newsgroups: comp.sys.ibm.pc.programmer Subject: Re: How to comment out lines in config.sys ? Summary: There IS a way... Message-ID: <4517@pegasus.ATT.COM> Date: 10 Mar 90 13:30:25 GMT References: <5793@ncrcae.Columbia.NCR.COM> <1990Mar8.231513.24361@Octopus.COM> Reply-To: dmt@pegasus.ATT.COM (Dave Tutelman) Distribution: usa Organization: AT&T Bell Labs - Lincroft, NJ Lines: 30 In article <1990Mar8.231513.24361@Octopus.COM> stever@octopus.UUCP (Steve Resnick ) writes: >In article <5793@ncrcae.Columbia.NCR.COM> heath@ncrcae.Columbia.NCR.COM (Robert Heath) writes: >>How do you comment out lines in config.sys without getting warning messages >>from DOS as it attempts to read them ? > >There is no way to cleanly do this as far as I know, but you can place colons >(:) infront of unwanted commands in config.sys if you don't mind the >"Unrecognized command in CONFIG.SYS" messages.... I was about to respond with an answer like Steve's (i.e.- can't be done), when I spotted an article on a "null driver" that gave me an idea. (PC Magazine, V9#2, 1/30/90, p. 307, letter from Jefrrey J. Hamilton.) This is a driver that installs and does nothing. Jeff suggests naming it for things you want temporarily out, without having to change the config file. But it can also be used to solve Robert's problem... Name the null driver REM. Since it ignores all arguments, you can put in your CONFIG.SYS file lines like: device=REM This line is a comment. Haven't tried it, but it ought to work. The program is small enough to be entered from the debugger (that's how Jeff shows it). +---------------------------------------------------------------+ | Dave Tutelman | | Physical - AT&T Bell Labs - Lincroft, NJ | | Logical - ...att!pegasus!dmt | | Audible - (201) 576 2194 | +---------------------------------------------------------------+