Best and most simple way - install latest Klite Codec Pack and forgot about it. Also in this case you get fast decoding function for almost any input media file format.

Important note about codec packs:
Never mix different codec packs. It will kill your system.
Example: uninstall CCCP codec pack before instal Klite Codec Pack!
Also you must uninstall splitters before instal codec pack (Matroska Splitters).

On Windows Vista don`t need install framework, but need need turn off UAC (Control Panel - UAC - X).

Program encode any file playable in Media Player Classic (with DirectShowSource decoder). Require installed codecs for input file decoding. As alternative for problem files can be used FFMpegSource decoder (don`t need external codecs)

Size (RAR): 27.3 Mb
no pass, 2% recovery record

XviD4PSP_5.0.36_Portable.rar