DOS MZ executable
|Type of format||Binary, executable|
|Extended to||New Executable
The MZ DOS executable file is newer than the COM executable format and differs from it. The DOS executable header contains relocation information, which allows multiple segments to be loaded at arbitrary memory addresses, and it supports executables larger than 64 KiB; however, the format still requires relatively low memory limits. These limits were later bypassed using DOS extenders.
The environment of an EXE program run by DOS is found in its Program Segment Prefix.
MZ DOS executables can be run from DOS and Windows 9x-based operating systems. 32-bit Windows NT-based operating systems can execute them using their built-in Virtual DOS machine (although some graphics modes are unsupported). 64-bit versions of Windows cannot execute them. Alternative ways to run these executables include DOSBox, DOSEMU and Wine.
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