codec problem (again)

I have had problems with some codecs like old MS video 1 and so on but the codec pack below solved all the problems.

Codec for Windows NT/2000/2003/XP v8.1 Build 4


For checking the states of the installed codecs, a free software GSpot is very useful. The software's main function is to analyze movie files and show many parameters associated with the video. For listing the installed codecs in one's PC, do System -> List installed codecs and filters.

some sites I referred to were:

http://www.moviecodec.com/topics/4537p1.html

http://forums.afterdawn.com/thread_view.cfm/311473