Zonealarm Extreme installation file I downloaded from this address has invalid digital signature.

I contacted tech support and they gave me this link
which has proper signature.

I also compare the file size.
File size of the invalid file: 377,356,185 bytes
File size of the good file: 377,356,192 bytes

Anybody can verify this? The digital signature ensures the integrity of the file. So it's very important.

Apparently, two different files are placed on two different locations on the ZA server. One has digital signature broken.