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HISTORY.DOC
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1990-03-31
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CVT (tm) HISTORY March 31, 1990
----------------
Vers. 1.00 - Beta test release - October 27, 1989
Vers. 1.01 - Original release - October 29, 1989
Fixed the bug that caused an incorrect error message
and the program to lockup when the archive extracted
a file which had any file in it that did not have a
filename extension. Added the /s switch to initiate
virus search subroutine, improved error handling,
error messages, added an error log, and added
additional screen color.
Vers. 2.0 - Major update - March 14, 1990
Added a configuration file to permit the user to
select the compression programs and set their
respective parameters. Added an automatic search for
all known archive extractors to provide alternatives
for the extraction programs. Eliminated the need to
have archivers in a subdirectory which is part of the
path statement. Added an environment parameter to
eliminate dependency on the DOS path statement in
order to permit more reliable program accesses.
Eliminated the BAD.$$$ subdirectory feature where
problem files were moved to the subdirectory because
of accidental erasures which occasionally occurred
with disk full errors. Replaced the BAD.$$$
subdirectory feature with file renaming routine.
Changed most switches to disable defaults. Changed
the virus scan to default, and made /v the disable
switch. Added the /vo switch to do a virus scan only
without any conversions. Added default feature to
strip all ANSI escape codes from .ZIP file comments,
and save the remaining text to a .LOG file. Added
ability to disable nested archive processing. Added
ability to enable ATTR or ATTRIB to change read only
file attributes. Improved screen colors, messages
and error handling. Eliminated temporary environment
changes, and substituted file read/write routines.
Made BATch file access as automatic option rather
than require the installation of an empty BATch file.
Added a configuration check screen, delete .LOG file
prompts, and an abort option.
Thanks to Chuck Metz, the sysop of Sartoga Clone BBS (408/395-1402)
in San Jose, Calif. for his help with beta testing CVT v2.0
Vers. 2.1 - Bug fix - March 19, 1990
Compensated for a bug which caused a loss of path
instruction for PKUNZIP under certain circumstances.
Compensated for a bug which caused LHARC to try to
create files with odd extensions when .ZIP file
comments began on the PKUNZIP search line. Corrected
an error in the documents which indicated that a .ZIP
file comment stripper could be activated.
Vers. 2.2 - Minor Update - March 31, 1990
Made read-only file attribute stripper and .ZIP file
comment stripper functions internal rather than
dependent upon other vendor external programs.
Improved .ZIP file comment .LOG writing function to
write all escape characters, and also to improve
distinction between each comment. Improved
processing of .ZIP file comments created by unknown
comment inserter. Added disable switch for .ZIP file
comment stripping when run in the virus checking only
mode. Corrected minor bug which omitted missing
operating file location in a few error messages.
Minor adjustments made to maximize use with PKZIP.EXE
and PKUNZIP.EXE v1.1 program files.
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