Dear all,

I have a very large zip file in VMS Alpha in 1135302 blocks damaged.

The error says during unzip using UnZip 5.1 by Info-Zip.

$ unzip 20030221.zip
Archive: DISK$APPLICATION:[USER]20030221.ZIP;1
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found
on the last disk(s) of this archive.

unzip: can't find zipfile directory in 20030221.zip
    and can't find DISK$APPLICATION:[USER]20030221.ZIP;1.zip, period.

No zipfiles found.
$

Can this be recovered?  I have tried the -F and -FF options but the
resultant zipfile is very small.

Please please help.

Many many thanks.