do what the faq suggests maybe
it's not a bsplayer issue, it's a mmswitch issue, thus what version of bsplayer you have doesn't matter.
maybe you don't know what mmswitch is and how to get rid of it ? (some codec packs and software install it silently)
to uninstall it:
search for a file named mmswitch.ax
do start->run
type:
Code:
regsvr32.exe -u path_to_the_file/mmswitch.ax