@mwb1100:
I know nothing about the zip specification - I just figured that there would be some algorithm ID or signature field in the zip header that would let programs know what they should use to decompress the contained file. And if the signature was unknown to a program, it could indicate that to the user in an error message.
If that doesn’t exist or is unreliable, then certainly there’s not much that PA can do about it. But it’s still a little disappointing, especially as the zip format has been extended more than once so you’d think that this issue might have been given some thought by whoever was doing the extending.
well problem is that you need to program extensions if you want them to be recognized.
and then what to say - for instance, would someone at WinZip write “download latest PowerArchiver to view this file”?
It is not an simple question, I just dont like how zip today has nothing to do with .zip just 2 years ago.
Imagine an outcry if MS called their new office format .doc so all the people with older software would end up confused on why cant they open it…