As far as I know, each zip file can be prepended with an arbitary block of data and still be a valid zip file. If your download is not corrupted, I cannot see why a unzip program cannot handle it. I usually just unzip J installter because I don't need the shortcut icon, start-menu or uninstall record.
Втр, 09 Ноя 2010, Murray Eisenberg писал(а): > In an earlier post, I had asked whether I could install over an existing > beta (under Windows) and a user said I could. > > So I began doing so and was faced with the choice of type of > installation Standard, System, or Custom. But I didn't know what sort of > installation I currently had. > > So I posted again, asking how I tell. > > A user replied that I should just unzip the installer into the folder of > the older beta version. > > I tried to run WinZip on the installer and was told it wasn't a valid > .zip file. > > So I'm sort of stymied. > > > On 11/9/2010 1:00 PM, Eric Iverson wrote: > > Date: Tue, 9 Nov 2010 13:00:35 -0500 > From: Eric Iverson <[email protected]> > Subject: Re: [Jbeta] Beta Digest, Vol 51, Issue 13 > To: Beta forum <[email protected]> > > I've lost track of this discussion. But off hand I can't think of any > valid reason for unzipping an installer instead of just installing. > Unless one had serious security concerns. > > > > > Message: 4 > > Date: Tue, 09 Nov 2010 09:56:22 -0500 > > From: Murray Eisenberg<[email protected]> > > Subject: Re: [Jbeta] Beta Digest, Vol 51, Issue 13 > > To: [email protected] > > Message-ID:<[email protected]> > > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > > [Once again when I tried to reply, quoting the entire beta digest > > message (and then intended to cut out everything irrlevant), Thunderbird > > truncated it before the message at issue.] > > > > I cannot open j701abeta_win.exe as a zip file to unzip it: WinZip says > > it's a corrupted zip file and only offers to execute it. > > > > On 11/9/2010 7:21 AM, [email protected] wrote: > > From: bill lam<[email protected]> Subject: Re: [Jbeta] how determine > > type of installation for beta upgrade? To: [email protected] > > Message-ID:<[email protected]> Content-Type: text/plain; > > charset=utf-8 You can find in which folder did you last install , and > > then unzip (not execute) the jbeta installer to that folder. ???, 08 ??? > > 2010, Murray Eisenberg ?????(?): > > > > I was beginning to install the latest jbeta executable under Windows > > > > when it asked me what type -- Standard, System, or Custom. > > > > > > > > Since I already have a j701 beta installed and -- in the absence of > > > > having seen a response to an earlier post here about installing an > > > > upgrade -- I was going to install over the earlier one. But how do > > I > > > > determine which kind of installation I did for the previous beta? > > > > > > -- > Murray Eisenberg [email protected] > Mathematics & Statistics Dept. > Lederle Graduate Research Tower phone 413 549-1020 (H) > University of Massachusetts 413 545-2859 (W) > 710 North Pleasant Street fax 413 545-1801 > Amherst, MA 01003-9305 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
