PMAP

PMAP maps out in detail how DOS memory (the lowest megabyte of system memory) is being used. It shows which programs are loaded, where they are loaded, and how much memory they are using. Similar is some ways to DOS's MEM command, PMAP's output is presented more logically and is easier to read and understand.

Here is a sample of PMAP's output in its default format:

The sample shows, for example, that COMMAND.COM is loaded at memory segment 073B and is using a bit under 10K of memory in three separate blocks. It has one file handle open and is attached to several interrupt vectors (08, 1C, etc.). 616,896 bytes of conventional memory are unused, all in one large block. There's also a summary of extended memory use; a similar summary of expanded memory is shown if EMM is present.

In addition to the display sample shown, PMAP can:

• Display greater detail about each loaded program (e.g., exact sizes and locations of blocks of allocated memory; contents of environment block for each program).
• List names of open files owned by active programs.
• Analyze use of memory by the DOS kernel (memory used for FCBs, FILEs, LASTDRIVE, etc.)
• List all loaded device drivers, with sizes, locations, names, and attributes.

PMAP is a free program, but it can't be sold or redistributed for profit.

PMAP.ZIP Version 2.11 (released July, 1991) - 49,586 bytes

Write us if you have questions or comments about PMAP.

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