odd file in vista

hi all,

dose any one know as to what this file is and can it be deleted?

AcRdB7_0_9.sta

I found it on Vista Home basic edition located in c:\users\Public\public 
do***ents

it default opening program is Windows Media player, but it dose not work, 
you can open it using note pad and it says

[componentstates]
component_key0=Adobereader 7.0.9 install
component_vale0=8

thanks
jason