freecell game problem

am maintaining 2000 proffessional clients in active directory .
users are habituated to play freecell game.

how should i remove freecell game permanently from 2000 proff.I remove from add/remove programe and exe of freecell from C:\winnt\system32.
but it still comes .I ‘m tired of it .

plz give a solution as soon as possible.

thanks and regards

ranjan
HP sales and services india Pvt.Ltd.