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An illustration of the linking process. Object files and static libraries are assembled into a new library or executable. A linker or link editor is a computer program that combines intermediate software build files such as object and library files into a single executable file such a program or library.
A PE file consists of several headers and sections that instruct the dynamic linker about on how to map the file into memory. An executable image consists of several different regions, each requiring different memory protection attributes. To ensure proper alignment, the start of each section must align to a page boundary. [8] For instance, the ...
Executable compression can be used to prevent direct disassembly, mask string literals and modify signatures. Although this does not eliminate the chance of reverse engineering, it can make the process more costly. A compressed executable requires less storage space in the file system, thus less time to transfer data from the file system into ...
Executable code, an executable file, or an executable program, sometimes simply referred to as an executable or binary, is a list of instructions and data to cause a computer "to perform indicated tasks according to encoded instructions", [1] as opposed to a data file that must be interpreted by a program to be meaningful.
It is an extension of using shared memory to reduce the total amount of memory required. Its general effect is that the program text consumes no writable memory, saving it for dynamic data, and that all instances of the program are run from a single copy. For this to work, several criteria have to be met:
The environment of an EXE program run by DOS is found in its Program Segment Prefix.. EXE files normally have separate segments for the code, data, and stack. Program execution begins at address 0 of the code segment, and the stack pointer register is set to whatever value is contained in the header information (thus if the header specifies a 512 byte stack, the stack pointer is set to 200h).
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Data files with the same file format as a DLL, but with different file extensions and possibly containing only resource sections, can be called resource DLLs. Examples of such DLLs include multi-language user interface libraries with extension MUI , icon libraries, sometimes having the extension ICL , and font files, having the extensions FON ...