It always uses Zip64 format. And with AES encryption, CRC values are not used/stored anyway.
Re the 7Zip issue, I remind you that 7Zip 9.13 beta reads files the latest version of Pro creates just fine. If the latest version of 7Zip doesn't, that's a shame, but I guess you can draw your own conclusions.
In any case, we won't be changing our compression engine any time soon. Provided we can extract from our own archives, we're satisfied. Plus, two other well-known utilities extract them just fine, so...
Re the 7Zip issue, I remind you that 7Zip 9.13 beta reads files the latest version of Pro creates just fine. If the latest version of 7Zip doesn't, that's a shame, but I guess you can draw your own conclusions.
In any case, we won't be changing our compression engine any time soon. Provided we can extract from our own archives, we're satisfied. Plus, two other well-known utilities extract them just fine, so...