The Preload Pages section is an optional section in the linear EXE module that coalesces a 'preload page set' into a contiguous section. The preload page set can be defined as the set of first used pages in the module. The preload page set can be specified by the application developer or can be derived by a tool that analyzes the programs memory usage while it is running. By grouping the preload page set together, the preload pages can be read from the linear EXE module with one disk read. The structure of the preload pages is no different than if they were demand loaded. Their sizes are determined by the Object Page Table entries that correspond. If the specified size is less than the PAGE SIZE field given in the linear EXE module header the remainder of the page is filled with zeros when loaded. All pages begin on a PAGE OFFSET SHIFT boundary from the base of the preload page section, as specified in the linear EXE header. The pages are ordered by logical page number within this section. Note that OS/2 2.x does not respect the preload of pages as specified in the executable file for performance reasons.

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