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osdev>Sjk

Revision as of 01:33, 1 June 2023 (view source) osdev>Tree5678 (Removed the section. I need to work on this more.) ← Older edit		Latest revision as of 16:44, 28 February 2024 (view source) osdev>Sjk (→‎PE Extension: corre)
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Line 1: {{File formats}} The MS-DOS EXE format, also known as MZ after its signature (the initials of Microsoft engineer Mark ~~Zbykowski~~Zbikowski), was introduced with MSPC-DOS 21.0 (pre-release version 1.0.90 only sported the simple [[COM]] format; note in DOS 1.x the DOS kernel doesn't support EXEs and the EXE loader is in COMMAND.COM; in DOS 2.x and later it was moved into the DOS kernel). It is designed as a relocatable executable running under real mode. As such, only DOS and Windows 9x/Me can use this format natively, but there are several free DOS emulators (e.g., [http://www.dosbox.com/ DOSBox]) that support it and that run under various operating systems (e.g., Linux, Amiga, Windows NT, etc.). Although they can exist on their own, MZ executables are embedded in all [[NE]], [[LE]], and [[PE]] executables, usually as stubs so that when they are ran under DOS, they display: This program cannot be run in MS-DOS mode. Line 154: With the advent of the [[PE]] executable, Microsoft added items to the MZ header, as defined in WinNT.h (Actually, that's incorrect – this extension was originally added in the New Executable format, which was first released as part of Windows 1.0 in 1985, and the multitasking MS-DOS 4.0 in 1986. The "PE header start" is called "e_lfanew" in Microsoft's headers, since it was originally the pointer to the NE header, although later was also used for LE, LX and PE; in principle it can be used for any executable format which is defined as an extension of MZ.) {\| {{wikitable}}