It generates random passwords.From this version you can specify a mask for your passwords.The options are : 'l' -lowercase ,'u' -uppercase , 'n' -numeric , 's' -symbols , 'e' -extended , 'x' -any of the selected types of characters and 'a','b','c','d' for use characters from your 4 custom strings. You also have the option to put a static text in every password.
Example for mask : '(pass+)ns' - every password will begin with 'pass+'- pass+2!,pass+9@ etc.