Password Generator Pro uses a high quality pseudorandom number generator to generate passwords. It offers 5 methods for generating the passwords: 1. automatic generation where you can choose the contents (letters, numbers and special characters), 2. masked generation where you specify patterns describing the passwords, 3. dictionary mode where it grabs random passwords from a file you specify, 4. pronouncable mode for easy to remember passwords and 5. character list mode for making passwords consisting of a chosen list of characters. All modes can choose lower-case, upper-case or mixed-case letters. An example password is showed so you can easily see how the passwords will look and a timer tells you the approximate time left of the process. When the passwords have been generated, you have the option of saving them to a file, copying them to the clipboard or printing them. All the functionality is available in command line form, so you can integrate our program in your own system. Passwords are generated using a pseudorandom number generator called Mersenne twister, which is an advanced algorithm that creates high quality random numbers using a twisted generalized shift feedback register, and has a higher number of dimensions than linear congruential generators. You can generate up to one billion passwords and up to 1000 characters in length.