[delphizip] Re: zip file corrupted.
- From: Edwin Yip <edwin.yip@xxxxxxxxxxxxxxxxxx>
- To: delphizip@xxxxxxxxxxxxx
- Date: Thu, 2 Apr 2009 22:39:34 +0800
Thank you Russell, it occurred when adding files. I've added back the
AddSafe option to see what will happen.
On Thu, Apr 2, 2009 at 3:15 PM, RPeters <rpeters@xxxxxxxxxxxxx> wrote:
> Edwin Yip wrote:
> > Hi All,
> > One of the users reported a zip file corruption error, he did not save
> the
> > error message. The zip file is located at a network drive.
> >
> > I did not use the AddSafe option, do you think adding that option will
> solve
> > the problem? Can anybody list the possible causes of a zip corruption?
> >
> > Any comments will be appreciated.
> >
> >
> Of course it depends upon what it was doing at the time.
>
> 1. Upon opening a zip (list, extract or preparing to add) it commonly is
> 1a. zip was built in a way ZipMaster could not understand.
> 1b. previous add/edit zip failed.
> 1c. the zip has been corrupted in storage/transfer
> (1d.trapped by AntiVirus).
>
> 2. After Add/Edit (AddSafe helps with Adding extra files)
> 2a. operation cancelled.
> 2b. write fails.
> 2c. operation fails for some other reason.
>
> I would be very wary of building, or adding to, a zip with the
> destination on a network drive but AddSafe helps by building it locally
> (assuming the tempDir is not set on a Network drive) then copying it
> across the network.
> Building a zip requires bidirectional seeking and random writes which
> also makes doing it across a network is at best slow.
> Russell Peters
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--
Best Regards,
Edwin Yip
Mind Mapping is as Effortless as Typing
http://www.InnovationGear.com
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