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- TITLE: DOS 3.2 patches
- Patches for DOS 3.2 COMMAND.COM
- -------------------------------
-
- These patches are adapted from the ones posted by skluger for DOS 3.1.
- I only adapted the ones I find useful for myself. If anyone would like
- to have one of the patches that appeared for 3.1, please contact me by
- BIXMail. I can then find out the right addresses.
-
- No. 1 : CLS only clears 25 lines in 3.2, so it's already fixed
- No. 2 : given below
- No. 3 : given below
- No. 4 : command DATER not interesting for me
- No. 5 : TIMER also not interesting
- No. 6 : I don't use FIND personally
- No. 7 : dto., COMP
- No. 8 : given below
- No. 9 : given below, same addresses as in 3.1
- No.10 : who uses EDLIN ?
- No.11 : given below
- No.12 : works for 3.2 exactly as given for 3.1. I use a 20 meg disk as
- drive C: and a 10 meg, which I patched for 2k clusters, as drive
- D:. After upgrading to DOS 3.2 from 3.1 I had to reformat and
- patch the disk. I don't know why, but now everything works fine.
-
- Originally, patches 1 through 5 were obtained from the November 26, 1985 issue
- of PC Magazine. It appeared on User-to-User. The contributor of these patches
- is Calvin R. Shields from Louisville, Kentucky.
- Patches 6 through 12 were obtained from CompuServe. It was posted on August 9,
- 1985 by Jim Gainsley.
- They were originally posted on BIX by skluger on September 10, 1986.
-
- Patch 2: Fix the ECHO command so that ECHO followed by two spaces may
- -------- be used to display a blank line. The practice of using ECHO
- to generate a blank line is not supported by MicroSoft.
- However, this is an undocumented feature available in earlier
- DOS versions but not in DOS 3.2, and even some authors like
- Peter Norton uses ECHO with two spaces to display a blank
- line.
- debug COMMAND.COM
- -e 3A88 83 F9 02 72
- -w
- -q
-
-
- Patch 3: Fix ECHO command so that ECHO OFF is the default for executing
- -------- a BATch file. The first byte is modified to set ECHO OFF for
- the processing of the AUTOEXEC.BAT file, and the second byte is
- modified to set ECHO OFF for all BATch files executed from the
- DOS prompt.
- debug COMMAND.COM
- -e 115E 02
- -e 1B2C 00
- -w
- -q
-
-
- Patch 8: Changing the size of the default environment.
- --------
- debug COMMAND.COM
- -e 0D4F 1E ;Set size to 544 bytes, use X'3C' for 1K bytes
- -w
- -q
-
-
- Patch 9: Alter ANSI.SYS to disable the wait for retrace and the screen
- -------- blanking.
- debug ANSI.SYS
- -e 02E3 90 90
- -e 02EA 90
- -w
- -q
-
-
- Patch 11: Automatic installation of printer port for DOS PRINT
- ---------
- debug PRINT.COM
- -e 11C2 4 "LPT1" ;Specify the printer port you want to use
- -e 190D 90 90 90
- -e 191F 90 90
- -w
- -q