Areca Backup

First, thank you for you fast respond.

1.) I am testing, in order to decide what is the right tool to do my backups. I backup through FTP to a server. In order to have access form any place from any computer. Therefore for me it is important, that I can unzip and encrypted a file easily. (I store each file separately)

2.) In the archive tools in have decrypt.exe and dezip.exe, but both do not work. (When I click on them it opens a black window that close as it opens. (I can not read so fast, but it seems that there is an syntax error.) Where can I get the *one* decryption tool? A working decryption tool would be my solution.

3.) AES 128 and the key