How to Reset a password, db2 v9.5

Hi All,

Environment:
Maximo v7.1 (service Provider), Websphere v6.1, db2 9.5.1

How to reset a Password ?

I developed a VM machine for IBM Maximo environment, currently I am unable to login Maximo application using 'maxadmin' user (Maximo administrative user) because I forgot the administrative password. Kindly help me how to reset a password of 'maxadmin' user on command line(Dos)/command editor/any other approach, in order to loing and use Maximo application.

In advance I appreciate your cooperation and help.

Waiting for reply.

Regards
Shah