For password reset you can open the console
click on forgot passwor
add user name then select temprory password
password will be email which mention on creation.
second way is batchfile
For resetpass.bat you need to contact with symantec support
find the artcle which has created by Mithun for more brief
https://www-secure.symantec.com/connect/articles/how-reset-symantec-endpoint-protection-manager-console-password-sep-121