Groups > comp.sys.ibm.ps2.hardware > #71496

Tentative view of IBMLZRW functions Re: What's "IBMLZRW.EXE" for?

From	Louis Ohland <ohland@charter.net>
Newsgroups	comp.sys.ibm.ps2.hardware
Subject	Tentative view of IBMLZRW functions Re: What's "IBMLZRW.EXE" for?
Date	2026-08-02 07:09 -0500
Organization	csiph.com Internet News Service
Message-ID	<114nc2a$2g5t$1@csiph.com> (permalink)
References	<114kuv1$11v9$1@csiph.com> <114kvr0$12c2$1@csiph.com> <114kvuo$12c2$2@csiph.com>

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https://forum.vcfed.org/index.php?threads/whats-ibmlzrw-exe-for.1258414/post-1512500

Bloodycactus wrote:

looks more like it provides an interface on int 0x2F and 0x21 (and can 
load like a .sys file).

dont load ibmlzrw, use a tool like (list.com) to look at diags.com, its 
a pile of compressed junk.

now load ibmlzrw, and use list.com to look at diags.com again.....

it basically decompressed a file executed or loaded that has the 
signature. (maybe the EDSY marker).

think of it more like PKLite or LZEXE, but it doesnt put the 
decompression runtime onto each executable, the runtime is provided by 
ibmlzrw.

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Thread

What's "IBMLZRW.EXE" for? Louis Ohland <ohland@charter.net> - 2026-08-01 09:14 -0500
  76/77 is the only appearance Re: What's "IBMLZRW.EXE" for? Louis Ohland <ohland@charter.net> - 2026-08-01 09:29 -0500
    Re: 76/77 is the only appearance Re: What's "IBMLZRW.EXE" for? Louis Ohland <ohland@charter.net> - 2026-08-01 09:31 -0500
      Tentative view of IBMLZRW functions Re: What's "IBMLZRW.EXE" for? Louis Ohland <ohland@charter.net> - 2026-08-02 07:09 -0500

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