please help

does anyone know what this error message means
when trying to play media files in winds media player or real player.eg(avi/mpeg) the following message box pops up (the"cpuinf32.dll"cannot be loaded os reports the specified module could not be found) with an ok button in it. there are no other options so when i click ok the media player has encountered a problem box pops up and the media player closes.

can anyone help

much apprieciated
mark_e

 

sorry forgot to add
running xp home edition
and yes i am new to computers

 

thanks for the quick reply halo
but i sorted it
the missing dll.s where removed when i uninstalled a useless dvd copying program
i found the replacements on the net. all working fine now.
cheers anyway.
regards.
mark_e