Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!ucsd!usc!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: More problems
Message-ID: <36622@apple.Apple.COM>
Date: 18 Nov 89 20:59:20 GMT
References: <3986762@ub.cc.umich.edu>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 26

In article <3986762@ub.cc.umich.edu> Tabakal@UB.CC.UMICH.EDU writes:
>[...] 
>To recap: I've been getting a ProDOS #56 error quite a bit.  Not only
>Zlink, but Kermit and other problems.

(By the way, I think you *don't* have a virus.  Keep decent backups
anyway.)

ProDOS error $56 can happen like this:  your SYS program OPENs a file
using a particular 1K buffer area.  It gets some sort of error and never
manages to close the file.  Later it tries to open another file with
that same 1K buffer, which is still marked "in use" in the memory
bitmap.  Presto--error $56.

You might want to check with the authors of ZLink and Kermit to see
whether you've got the latest version, and whether your version had
problems with $56 errors.
-- 

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
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   My opinions are my own, not Apple's.