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- JP Software
-
- 4DOS 5.5 rev A ==> 5.5 rev B Patch Documentation
-
- October 19, 1994
-
-
- Copyright 1994, JP Software Inc., All Rights Reserved. Published by JP
- Software Inc., P.O. Box 1470, E. Arlington, MA 02174 USA, (617)
- 646-3975. 4DOS is a registered trademark of JP Software Inc.
-
-
- This file explains how to install the 4DOS 5.5 rev B patch.
-
- To use the patch, you must have:
-
- * JP Software's PATCH.EXE program. This program is in a separate
- file, PATCH.ZIP on CompuServe, or 4DPATCH.ZIP on bulletin boards
- and the Internet. [* See note below.]
-
- * A copy of 4DOS 5.5 rev A. The simplest way to check your
- revision level is to use the 4DOS VER /R command.
-
- To use this patch, copy the 4DOS55A.RTP file to the directory where your
- 4DOS version 5.5 files are stored. Make sure JP Software's PATCH.EXE is
- in the same directory, or in a directory on your PATH, then enter the
- command:
-
- patch 4dos55b
-
- This patch converts 4DOS 5.5 rev A to version 5.5 rev B. It modifies
- only 4DOS.COM, all other files are unchanged from rev A. Branding (name
- and serial number) information in your 4DOS.COM file will be preserved
- in the modified file.
-
- If you want to test 4DOS.COM to make sure the patch worked, restart
- 4DOS, then use the VER /R command. This command will report "4DOS
- Revision A" (if the patch did not work) or "4DOS Revision B" (if it did
- work).
-
- If you are short on disk space and receive a message that there is not
- enough space to perform the patch, you can use a command like this to
- reduce the disk space required:
-
- patch /noundo 4dos55b
-
- This will make recovery slightly more difficult in the unlikely event of
- a power failure or similar problem during the patch process, but will
- reduce the disk space required to perform the patch.
-
-
- [* JP Software's PATCH.EXE is the version 1.10 patch program from the
- .RTPatch patch software sold by PocketSoft Inc. If you have a copy of
- PATCH.EXE version 1.10 or later from another company which also uses
- .RTPatch to update its software, you can use it with JP Software
- patches. However, we recommend that you do NOT use version 2.0 of
- PATCH.EXE under OS/2. When PATCH.EXE 2.0 is used under OS/2 it patches
- the files properly, but does not correctly update the dates and times of
- the patched files.]
-
-
- 4DOS version 5.5 revision B includes the following changes to version
- 5.5 revision A:
-
- * Fixed a problem which could cause MOVE to delete files without
- moving them if you attempted to MOVE a file to itself (e.g.
- MOVE *.DAT with no target specified).
-