Re: DOS 3.3 for 1.40 MB disk, for a system with non-working 80-column code?

[russotto@grace.speakeasy.net (Matthew Russotto)]

In article <atehbo0gjk@enews2.newsguy.com>,
Charlie <charlied@NOSPAMbboard.com> wrote:
>
>"Rob Greene" <greeneratcharterdotnet> wrote in message
>news:Xns92E3BA737881Rob.Greene@216.168.3.44...
>>
>> Is anyone aware of Java classes to work with SHK and SDK files?  I've
>> come across the documents regarding the format of the files, but it
>> assumes that the reader already knows the encoding/decoding algorithms,
>> which I most definately do not.  I'd like to incorporate the ShrinkIt
>> filetype into AppleCommander.  (For example, an SDK or maybe even a SHK
>> could be opened as a "disk image" in AppleCommander.  Possibly also
>> being able to open a SHK or SDK file that sits within a disk image.)
>> -Rob
>
>It is my understanding (please correct me if I'm wrong on this) that the
>ShrinkIt algorithm is patented and that the company that owns the rights to it
>aggressively enforces it's ownership.

The patent expires next year and Unisys (the putative owner, though
IBM has an earlier patent on the same algorithm) can eat my shorts.

There are Java classes which implement LZW, by the way.  I'm not aware
of any which work with SDK or SHK files.
-- 
Matthew T. Russotto                            mrussotto@speakeasy.net
"Extremism in defense of liberty is no vice, and moderation in pursuit
of justice is no virtue."  But extreme restriction of liberty in pursuit of 
a modicum of security is a very expensive vice.