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HISTORY.TXT
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1997-08-13
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History of ProtEXE
------------------
+ addition
- removal
* change
! bug fix
3.10 Aug 1997
More tricks to stop unpackers & debuggers, many new features,
an interactive shell, a configuration file and some bugs fixed.
+ credit card ordering is now available - see ORDER.FRM
+ created commercial version without personalized registration
+ added code to stop 'universal' unpackers like UPC, CUP, TEU, ...
+ added anti-debugging tricks, especially designed to kill most
commonly used debuggers (including Soft-ICE)
+ added a layer of polymorphic decryption
+ added -t option to tie program and decryption code together so
that an unpacked version of the executable would never work {+}
+ added -s option and PTXCrypt programming libraries to allow
registered users to dynamically encrypt their data {+}
+ added -r option to protect programs that stay resident (TSRs)
+ added -i option to add copyright info to the EXE header
+ added -ek option to keep the extra data at the old position
+ added -k option to keep the original code 100% intact
* password option now available in the unregistered version also
+ the password prompt and error message can now be customized
+ can now wait for a keypress after banner and optionally echo
the key pressed, attach a CR/LF and/or abort if ESC pressed
* changed order of processing to crc error, registration info,
banner, password
* changed -eoh switch to -f to allow the 'fake header' option to
be used without overlays
* can now protect the DOS stub of new executables
+ registration validation now also shows timestamp code
+ added an interactive shell which allows you to browse through
files and directories and interactively change all the options
+ added a configuration file to store often used options
+ added TestMsg tool to test the CRC failed message
+ added COM2EXE tool to convert COM files to EXE format (especially
handy for COM files that would exceed 64K when protected)
+ included ComprEXE executable compressor and added it as the
default to PACKERS.PTX (id 'c')
- removed LZEXE from archive (replaced by ComprEXE)
* changed COMPACK id from 'c' to 'cp' (to avoid conflict with ComprEXE)
+ added XPACK to default PACKERS.PTX
+ added a DESCRIPT.ION file with file descriptions for 4DOS
+ added a table of contents to the documentation
* now displays two sets of statistics if a compressor is used:
one relative to the packed file, and one relative to the source file
* ProtEXE now works with PKLITEd executables that check their
PSP signature
* removed PROTEXE.FAQ and put the information it contained within
the main ProtEXE documentation
! fixed bug with /eo feature that would let some EXE files crash
! fixed bug that caused the -h option (don't pack header) to be
ignored when using a compressor
! fixed bug in the registration validation code that would sometimes
cause problems (esp. Qemm386) after running PROTXVER on a program
! COM file overflow was not always detected for small overflows
! relocation table optimizations could theoretically create a
relocation at offset 0FFFFh; this has been fixed now
! packer commandline is now treated case sensitive (in case a
compressor requires case sensitive options)
! the executable's timestamp was sometimes touched because
the file buffers weren't flushed yet; this is fixed now
! fixed bug that caused required memory paragraphs field to be too
high in the protected EXE-files
3.01 Dec 1996
Minor update to v3.0, not distributed
+ added code to stop UPC (universal program cracker)
3.0 Dec 1996
Many new features were added & the security has greatly improved.
+ added -b option to display a bannerfile
+ added -p option to password-protect the executable
+ added -c option to call a compressor before protecting the executable
+ added -eo option to protect some hardcoded overlaid EXE-files
+ added -eoh option to fake the old EXE header to be read
+ added -ec option to CRC check extra data in EXE file {+}
+ added -h option to keep extra EXE header information
+ added -d option to protect device driver EXEs etc.
+ added ability to verify registration information
* improved and added anti-debugging tricks
* changed, improved and secured encryption system
* messagefile may now contain $ characters & CRC failed message
can no longer be suppressed with >NUL on the command line
* the executable's timestamp isn't touched anymore
* statistics have been reformatted and percentages added
* improved error/warning handling for easier troubleshooting
+ support for / switch character as well as -
- command line option -0 that got disabled in v2.12 is now
completely removed
! using the single parameter form if the file with extension .OLD
exists already now works correctly; also if an error occurs
during the protection the original file will be left untouched
and not renamed to .OLD anymore
! can now stably handle EXE files which rely on the stack segment
displacement having a certain value (e.g. LHA & PKZIP SFX).
2.12a Jul 1996
Minor update to v2.12, not distributed
! small bug in default msg in registered version fixed (would show
some garbage after the actual message)
* regkey may now be in PATH as well as in same directory as EXE
2.12 Jun 1996
Another bug fix, ProtEXE is now stable
! problems with running in an OS/2 DOS box fixed
- command line option -0 has been disabled
* changed registration system entirely, now uses reg key
2.11 Feb 1996
Major bug fix
! fixed bug that caused incompability with the Pentium processor
2.1 Dec 1995
ProtEXE now supports both COM & EXE files
+ added support for COM files
2.0 Dec 1995
Major new version, almost a complete rewrite
+ added lots of anti-debugging tricks
* uses true CRC instead of checksum
* improved encryption method, especially for long series of the same bytes
- magic number option removed; program now automatically picks the
encryption parameters at random so that everytime you run it a different
EXE file is created
- registered version no longer requires USER_ID.DAT; the user name is
branded into the EXE file
1.1 May 1995
First public release, complete rewrite
* improved encryption method and checksum method
+ added ability to change checksum error message {+}
1.0 Mar 1995
Original version, never released
If you have any suggestions, I'd like to hear them.