How can I play a password-protected video?

I downloaded a password-protected video and its password from a website to my laptop, but now I can't watch the video in my desktop computer because the password can only work on the computer the file was first played in (in this case, my laptop). Is there a way to rip the video or somehow capture the video onto a new file so that it can be played in my desktop computer?
Oh, it can only be played with the WMP, if I try to play it with another player (even on my laptop) I get indistinct video.