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Need DOS ZM executable sample

StewartBW 1,720 Reputation points
2025-06-08T22:01:53.75+00:00

Hi

List of file signatures on Wikipedia shows: DOS ZM executable and its descendants (rare) magic number: 5A 4D

I searched a lot on my old Dos apps but didn't find one, anyone can share a ZM exe sample?

Thanks.

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
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  1. Castorix31 90,191 Reputation points
    2025-06-09T07:28:02.0966667+00:00

    I don't think ZM really exists even if it is noticed on some sites

    In winnt.h, there is :

    #ifndef _MAC
#include "pshpack4.h"                   // 4 byte packing is the default
#define IMAGE_DOS_SIGNATURE                 0x5A4D      // MZ
#define IMAGE_OS2_SIGNATURE                 0x454E      // NE
#define IMAGE_OS2_SIGNATURE_LE              0x454C      // LE
#define IMAGE_VXD_SIGNATURE                 0x454C      // LE
#define IMAGE_NT_SIGNATURE                  0x00004550  // PE00
#include "pshpack2.h"                   // 16 bit headers are 2 byte packed
#else
#include "pshpack1.h"
#define IMAGE_DOS_SIGNATURE                 0x4D5A      // MZ
#define IMAGE_OS2_SIGNATURE                 0x4E45      // NE
#define IMAGE_OS2_SIGNATURE_LE              0x4C45      // LE
#define IMAGE_NT_SIGNATURE                  0x50450000  // PE00
#endif

    (and Windows Forms tag is wrong...)

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