KGB Archiver is the compression tool with an unbelievably high compression rate.
Unfortunately, in spite of its powerful compression rate,
it has high hardware requirements (I recommend processor with 1,5GHz clock and 256MB
of RAM as an essential minimum). One of the advantages of KGB Archiver is also AES-256
encryption which is used to encrypt the archives.
This is one of the strongest encryptions known for human.
Explorer shell extension
Up to 8% faster compression/decompression
Now SFX archives run on any Windows or under WINE on Linux
Lots of crashes fixed