pcox
New Member
Posts: 1
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Post by pcox on Oct 15, 2009 15:13:15 GMT -5
Can you provide a technique to add more information (append) to an existing archive in a zip file? Because a zip archive can be huge I have as a requirement not to read it in (i.e., unzip the archive into a stream in main memory). What I need to do is append to an existing archive entry by index.
Thanks,
pcox
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Post by Kevin on Nov 2, 2009 8:02:49 GMT -5
Sorry, I appologize for the delay in answering this (I did answer by email however). I have been out of the country for awhile and did not have good access to the internet.
Unfortunately, the PKZip format does not allow appending files to an archive. An archive must be opened and re-written each time it is modified in any way, which is why you cannot modify a spanned archive in any way.
Kevin
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