Timeline for Why does changing a DOS/Windows EXE cause it to not run?
Current License: CC BY-SA 4.0
3 events
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| May 12, 2022 at 17:02 | comment | added | Schmuddi | Replacing a string by a shorter one would be possible with Pascal programs as well: Turbo and Borland Pascal strings stored the length of the string in the first byte (reference) so the value of that byte would have to be adjusted together with the content of the string. | |
| Oct 20, 2020 at 13:52 | comment | added | ssokolow |
Making edits to binaries is actually one of the tricks covered in Paul Somerson's "DOS Power Tools" where he walks users through hex-editing things like COMMAND.COM as a free way to secure your computer against casual intrusion by doing things like renaming the DIR command to DUR or some other three-character sequence. It's been a while, but I think he also talks readers through how to alter the background and foreground colors set by COMMAND.COM.
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| Oct 19, 2020 at 15:24 | history | answered | Ralf Kleberhoff | CC BY-SA 4.0 |