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Monster Media 1994 #1
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RENEGADE
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COMPRHLP.TXH
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1994-01-22
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Help with file compression
There are three types of file compression in use on most BBSs.
They are identified by the files EXTENSION, for example there are ZIP files
(sample.ZIP), ARJ files (sample.ARJ) and ARC files (sample.ARC).
Consequentially there are three programs needed to uncompress these types
of files.
For ARJ files you need to DL ARJ241.??? Thats all you need for it.
The file is called ARJ.EXE. here's how you can use it. Place ARJ.exe in the
same directory as the file with the ARJ extension. Type "ARJ X <filename>"
where <filename> is the name of the file you want to uncompress. Thats it!
For more advanced users you may place the ARJ.EXE file in your path and execute
it from anywhere just fine.
For ZIP files. You will need to download PKZ????.EXE where "????" is
the current version (PKZ204G.EXE as of this writing). After downloading the file
place it into a directory and type the filename like you want to execute it.
It is a self extracting file like the this one. You will find a file inside
the PKZ????.EXE called PKUNZIP.EXE. Place this file in the directory with the
file that has the ZIP extension. Type "PKUNZIP <filename>" where <filename>
is the name of the file with the ZIP extension.
For ARC files. You will need to download PKXARC.EXE. While this
program does not have a version number in the name it works exactly like the
PKZ????.EXE above in every way. Please see the above paragraph.
While this may seem like a hassle alow me to explain why we compress
files. For one it shortens the amount of time you are downloading. Compression
also allows the BBS to have more available for you to download. This also allows
you to put several files into one package. A program may have alot of files
that it needs to operate, these can all be stored into one compressed file.
Next question is always why not use one compression for all the files.
This was the original intent of the BBS. All uploads are automatically
converted to a common format. But with the variety of file formats on CDroms
and the quantity of files on most BBSs it is a tough chore.