With the deepening of globalization, foreign trade enterprises have an increasingly urgent need for technical knowledge. Among them, the PE file structure, as an important knowledge in the field of computer science, has indispensable value for enterprises involved in software development, technical cooperation or international trade.
PE file, namely Portable Execute file, is the standard format of executable files under the Windows operating system. It is not limited to the well-known EXE files, but also includes multiple extensions such as DLL, OCX, SYS, etc. The key is that whether a file belongs to a PE file has nothing to do with its extension, but depends on its internal structure.
The structure of PE file is rigorous and complex, mainly including DOS header, NT header, section table and specific sections. As the "pioneer" of PE file, DOS header is not only used for compatibility with MS-DOS operating system, but also indicates the location of NT header in the file. NT header is the core of PE file, which contains the main information of the file, such as "PE" подпис, заглавка на PE файл и PE незадължително заглавие .
In addition, the section table, as the "navigation map" of PE file, describes the information of each subsequent section of the file. These sections are actually independent containers that can load different types of content such as code and data. Each section has its own independent memory permissions. For example, the common code section has read/execute permissions by default.
Understanding the PE file structure is not only helpful for foreign trade companies to better conduct technical cooperation and exchanges, but also to make more informed decisions when it comes to software-related trade. Mastering this basic knowledge will undoubtedly add a strong technical support for the development of enterprises on the international stage.