schimke@puff.cs.wisc.edu (Timothy Schimke) (03/29/88)
>is documented, for instance. I think the price is less than $90. >Kenneth Herron Forgive me if this has been brought up before, but what is the /E parameter to command.com. In addition, are there any other undocumented options out there? Thanx in advance. (post or mail) -- Tim
michaelb@csd4.milw.wisc.edu (Michael L Bloxham) (03/29/88)
In article <1515@puff.cs.wisc.edu> schimke@puff.WISC.EDU (Timothy Schimke) writes: >>is documented, for instance. I think the price is less than $90. >>Kenneth Herron > >Forgive me if this has been brought up before, but what is the /E >parameter to command.com. In addition, are there any other undocumented >options out there? Thanx in advance. (post or mail) > >-- Tim The /E after the command.com sets up the amount of space you are allocating to your environment. I believe that this is avilable to DOS 3.2,3.3. The /E switch must be in multiples of 16 between 160 and 32768. This means you can give your environment up to 32K of memory. The SHELL command in a config.sys will also do this with the same switch. Like thus: SHELL=COMMAND.COM[/P]/E:nnnn where nnnn is the intended size for your environment in bytes. The /P is to run the autoexec.bat. The nnnn still must be within the afore mentioned constrictions. hope this is of some use. mike ----------------------------------------------------------------------- internet: michaelb@csd4.milw.wisc.edu BITNET: michaelb%csd4.milw.wisc.edu@wiscmac3.bitnet {seismo|nike|ucbvax|harvard|rutgers!ihnp4}!uwvax!uwmcsd1!uwmcsd4!michaelb
agollum@engr.uky.edu (David Herron aka Admiral Gollum) (03/29/88)
In episode <1515@puff.cs.wisc.edu>, we heard schimke@puff.WISC.EDU (Timothy Schimke) say: >>is documented, for instance. I think the price is less than $90. >parameter to command.com. In addition, are there any other undocumented >options out there? Thanx in advance. (post or mail) (I knew that would get somebody :-) The /E parameter to COMMAND.COM allows you to set the size of the environment space. In 3.2 /E:xxx sets the environment space to xxx bytes, up to 32k. In 3.1 xxx is in paragraphs and can be up to 94 (I think). The actual MS-DOS manuals document this switch, but some OEMs who lisense the OS and produce their own documents leave it out. The correction: I have been informed by a Microsoft rep that, while Microsoft does package a generic version of MS-DOS (ie, disks and manuals all in one box), they do not sell this package through retail channels. Microsoft sells this package only to OEMs who don't wish to create their own customized version of the package but who *do* want to sell MS-DOS with their computers. Some of these generic packages do end up available for direct sale (which is not what Microsoft wants). Kenneth Herron
murillo@sigi.Colorado.EDU (Rodrigo Murillo) (03/30/88)
Here is the easiest way to expand the DOS environment. The first
line in your autoexec.bat should be:
shell=command.com /P /E:1024
This tells DOS to make command.com the 'new' shell, to allocate 1k bytes
for envar space (/E:1024) and to make the shell permanent (/P). This
only works in 3.2 and 3.3 (maybe 3.0 and 3.1, I forget)
--
_______________________________________________________________________________
Rodrigo Murillo, University of Colorado - Boulder (303) 761-0410
murillo@boulder.colorado.edu | ..{ncar|nbires}!boulder!murillo
( Machines have less problems. I'd like to be a machine. -- Andy Warhol )rgsmeb@abcom.ATT.COM (Michel Behna) (03/30/88)
From article <1515@puff.cs.wisc.edu>, by schimke@puff.cs.wisc.edu (Timothy Schimke): > Forgive me if this has been brought up before, but what is the /E > parameter to command.com. In addition, are there any other undocumented > options out there? Thanx in advance. (post or mail) > > -- Tim If I can remember correctly from when I used to MSDOS the /E parameter allows you to specify how big is your environment space. This is good if you have a lot of environment variables but bad if you have a large program because it uses some of the 640K available for users. Michel Behna
cramer@optilink.UUCP (Clayton Cramer) (03/30/88)
> >is documented, for instance. I think the price is less than $90. > >Kenneth Herron > > Forgive me if this has been brought up before, but what is the /E > parameter to command.com. In addition, are there any other undocumented > options out there? Thanx in advance. (post or mail) > > -- Tim /E isn't undocumented on DOS 3.3 -- it allows you to set the number of paragraphs of environment space available when starting COMMAND.COM. Clayton E. Cramer