DOS ain't dead - CauseWay DOS extender v5

CauseWay DOS extender v5 (Announce)

posted by tkchia , 05.04.2025, 07:41

Hello DosWorld,

> > Currently my lfanew utility can un-stubify and re-stubify
> > PE programs, but it expressly does not support LE/LX programs yet
> > (this is a non-trivial task).
> What you mean? (May be I miss something?)

The LE/LX portion contains a number of file offsets which are relative to the start of the whole file. So if I change an MZ stub to an MZ stub of different size, then I need to adjust these offsets. (I think pmwbind handles one of these offsets, but not all.)

If I simply change the MZ stub and leave the LE/LX part unchanged, the resulting program will not work.

Thank you!

---
https://gitlab.com/tkchia · https://codeberg.org/tkchia · 😴 "MOV AX,0D500H+CMOS_REG_D+NMI"

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Complete thread:

CauseWay DOS extender - Japheth, 25.02.2025, 16:04 (Announce)
- CauseWay DOS extender - rr, 25.02.2025, 20:22
- CauseWay DOS extender - tkchia, 26.02.2025, 16:03
  - CauseWay DOS extender - Japheth, 27.02.2025, 15:30
    - CauseWay DOS extender - Rugxulo, 28.02.2025, 05:26
      - CauseWay DOS extender - Japheth, 28.02.2025, 07:14
        CauseWay DOS extender - Rugxulo, 28.02.2025, 10:30
      - CauseWay DOS extender - tkchia, 28.02.2025, 16:36
    - CauseWay DOS extender - tkchia, 28.02.2025, 16:51
    - CauseWay DOS extender - DosWorld, 28.02.2025, 23:11
- CauseWay DOS extender v5 - Japheth, 28.03.2025, 08:12
  - CauseWay DOS extender v5 - RayeR, 30.03.2025, 04:03
    - CauseWay DOS extender v5 - Japheth, 30.03.2025, 05:33
      - CauseWay DOS extender v5 - tkchia, 30.03.2025, 16:59
        CauseWay DOS extender v5 - Japheth, 30.03.2025, 17:27
        CauseWay DOS extender v5 - tkchia, 30.03.2025, 19:45
        CauseWay DOS extender v5 - RayeR, 01.04.2025, 16:10
        CauseWay DOS extender v5 - Japheth, 02.04.2025, 14:03
        CauseWay DOS extender v5 - DosWorld, 02.04.2025, 04:24
        CauseWay DOS extender v5 - tkchia, 05.04.2025, 07:41
      - CauseWay DOS extender v5 - roytam, 31.03.2025, 18:45
        CauseWay DOS extender v5 - Japheth, 01.04.2025, 08:56
        CauseWay DOS extender v5 - roytam, 01.04.2025, 14:32