Divx Subtitle program

I used to have a program for displaying subtitles from separate files (.sub files and a few other formats I believe) overtop of divx/xvid movies. Recently I’ve formatted and I no longer remember what the program was. I’ve been searching, but all I can find are separate media players that support the feature, whereas before I had a sort of plugin application that would just display the subs in windows media player. Anyone know what I’m looking for? Thanks in advance for your help.

VSFilter
//Danne

Thanks VSfilter works great. I found the old program I used to use though. VobSub it’s called. Both are equally good at directshow filtering of subtitle data. Thanks a million for the help.