u need to download codec for fixing problem.
http://filehippo.com/download_klite_codec_pack/
Click "Download latest version" in the right hand of top windows.
If u want 2 download faster, u can try the software Internet Download Manger to increase speed!
Here ur link:
http://internetdownloadmanager.com/download.html
Click Download Internet Download Manager v5.18 from a mirror site to start!
Have fun!