Subj : Re: Can't open packet w/
To   : Jasen Betts
From : Charles Angelich
Date : Thu Sep 14 2000 11:35 am

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Hello Jasen - 

JB>>> The signature for arc is hex 1A as the first byte 

CA>> Pkarc was Pkpak and used PAK as the extension for very short
CA>> time then changed to Pkzip (I guess PAK was already used?). 

CA>> PKPAK FAST! Archive Create/Update Utility Version 3.61  08-02-88
CA>> Copyright (c) 1986-1988 PKWARE Inc. All Rights Reserved. PKPAK/h
CA>> for help 

JB> PKARC FAST! Archive Create/Update Utility Version 3.5 04-27-87
JB> Copyright (c) 1986,1987 PKWARE Inc. All Rights Reserved.  PKARC/h
JB> for help 

JB> Looks like arc preceeded pak. I think the PAK thing came about
JB> after SEA sued PK over the ARC name and extension and he gave in
JB> and renamed the program. 

Yes, exactly so, the use of the `ARC' extension by PkWare preceded
the use of `PAK'. I also think the renaming to `PAK' was changed
because Northgate(?) had already began using this for their
compress/archiver app and `ZIP' was born. 8) 

JB> The signature for pak is the same as arc but the second byte is
JB> 0x0a or 0x0b 

There are compatibility problems between the PkWare apps that use
`ARC' and those that used `PAK' (one release?) but the one using
`PAK' is/was much faster than previous versions. 

>
>        ,                          ,
>      o/      Charles.Angelich      \o       ,
>     <|    <at>AngelFire<dot>com     |>  __o/
>     / >          USA, MI           < \   __\__
 

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