Help Get error message when i try to download xvid codec.?

[gabrielool]

Error says " problem running post-install step. Installation may not complete correctly directshow filter (32-bit) register failed!"
I am lodged into as administrator so thats not it HELP!!!

 

[Unregistered]

Error says " problem running post-install step. Installation may not complete correctly directshow filter (32-bit) register failed!"
Please help installing XviD