River Past DirectShow Detective is a tool that you can use to find DirectShow filters, video and audio encoders. This can come in handy when a software or codec installation leaves your system in a mess.
Some codec packs contain problematic installation and can replace your working filters or codecs. By using River Past DirectShow Detective, you can find out the name, file name and version of each of your installed filters/codecs. This will help you find out whether a problematic filter or codec has been installed or overwritten, causing the problems.
River Past DirectShow Detective helps you to verify your DirectShow installation. It shows you the complete list of your installed DirectShow filters, video compressors and audio compressors, their version and installed file. Simply browse to the video or audio file that you need to test and River Past DirectShow Detective tells you instantly whether you have the right codecs installed. Best of all, if it identifies the codec that's missing, and sometimes offers links to download the correct one that you need.
River Past DirectShow Detective is a simple but effective program that will help solve many of your codec woes.