🚀 go-pugleaf

>
>This has been posted before but it seems to be of continuing interest
>to net subscribers.  NOTE - I'M STILL LOOKING FOR ADDRESS TO PATCH
>FOR USE WITH DOS 3.1 (ON IBM-AT).
	
	... patch for DOS 2.x

>For DOS 3.1, an undocumented feature of the SHELL command is used
>in the CONFIG.SYS file:

	... DOS 3.x SHELL command feature

>I'd like the address to patch in DOS 3.1, since the SHELL feature is undoc-
>umented, and hence unsupported.
>
>Max S. Robin
>AT&T Bell Laboratories
>Rm. 3E-318A
>Whippany, NJ 07981
>201-386-6865
>
>email:whuxg!2212msr
>


At least the SHELL command is listed in the documentation! I think there
is a higher probability that this command gets fully documented so that
it stays in future revisions of MS-DOS then for the address of a patch to
remain constant from one version to another. :-)

By the way, the location for the patch on my DOS 3.1 on an IBM PC-AT is D0D.
The current instruction is:

xxxx:0D0D C7063A130A00 MOV 	WORD PTR [133A],000A

I found this before I learned of the 'feature' in the SHELL command.

Jim Vallino
Siemens Research and Technology Labs
Princeton, NJ
{ihnp4,allegra}!princeton!siemens!jrv