How to change pass in xp admin account when u dont know the pass

when if there moment like when u in some1 admins account in xp but when u need to change the pass in that when u dont knowng the pass u can use this way....

go to CMD

Thn type like this

net user

Eg- net user nic asdf
try it

or

type: "control userpasswords2" in run, n u get total access to all user accounts!