password prompting in dos

I need a batch script (runs in a DOS BOX); let me know the cost and time for you to finish this. The script must function as follows o? ? ? ? ? ? ? Run in a dos box on a Windows 2000 or later system o? ? ? ? ? ? ? Prompt the user for an environment variable (like a password) and echo **** to the user o? ? ? ? ? ? ? The script you write will be called from a dos batch file script. o? ? ? ? ? ? ? Prompt the user with “Enter Password?? o? ? ? ? ? ? ? This project can be done in Perl, DOS Batch or VB Script ??" but must be runtime ready as is (I own Perl2exe) o? ? ? ? ? ? ? An environment variable “my_password?? will be updated to hold the value the user enters. Have error checking that states a message with a problem making the settings? MUST be clear-simple-well layed out Let me know if you need anything further to make a ‘ready to run’ DOS batch program.