Q64024: C 6.00 UNDEL.EXE Is Not Compatible with the Microsoft Editor

Article: Q64024
Product(s): See article
Version(s): 1.00 1.02 | 1.00 1.02
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_basic
Last Modified: 25-JUL-1990

If backup copies of files are stored in the \DELETED subdirectory by
the M Editor, typing "undel" should bring up a listing of backup
copies. However, if the C 6.00 version of UNDEL.EXE is used, the
following message will be displayed: "

   0(0) bytes in 0 deleted files.

The C 5.10 version of UNDEL.EXE will successfully bring up a listing
of backup copies saved by either the M Editor or the Programmer's
WorkBench (PWB).

This problem can be reproduced by setting the text backup switch in
the M section of the TOOLS.INI file to "undel". After saving various
copies, backups are added to the \DELETED subdirectory and a listing
can be brought up by using the C 5.10 UNDEL.EXE. Using the C 6.00
version of UNDEL.EXE causes the erroneous message listed above to be
displayed. This incompatibility was caused by adding OS/2 version 1.20
filename support to UNDEL.EXE and EXP.EXE.

As a workaround, rename the C 5.10 UNDEL.EXE to UNDEL51.EXE and the C
6.00 UNDEL.EXE to UNDEL60.EXE.

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