MS WINDOWS 3.11 Setup Disk Compression?

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1 total messages Started by Steve Scanzoni - SunSelect Engin... Mon, 16 May 1994 01:24

#976

Author: Steve Scanzoni - SunSelect Engin...
Date: Mon, 16 May 1994 01:24

27 lines
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Does anyone know what compression method MICROSOFT is using on the MS 
WINDOWS 3.11 setup disks?  There are those who will say LZW, but I am 
not so sure.  Here are some facts...
	
	1) Any given 3.11 file (that has not changed between releases) is at 
	   least 10% smaller. For example calc.ex_ is 27999 kb on windows 3.10 
	   and 25112 kb on windows 3.11. Obviously , the smaller file size
	   allows Microsoft to place more files on less disks!
		 
	2) The DOS expand.exe program and the WINDOWS lzwexpand.dll have 
	   increased in size and functionality in 3.11
		 
	3) The new expand.exe will expand either flavor(3.10 and 3.11) 
	   of a given file, and the resulting file is identical. 
	   (This is also true of the new lzexpand.dll)

	4) Microsoft does provide a COMPRESS.EXE with the windows SDK and 
	   professional VB, however it produces the more bulky 3.10 compression.

	5) The Windows 3.10 compression is LZW.

If anyone has any comments or helpful info, pass it along.  I am very 
interested in creating smaller release disks myself.                                                   - Steve Scanzoni

- Steve Scanzoni
scanzoni@popsecret.sun.east.com

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