I'm not certain I know enough to ask this but I'm going to try.

I have a Creative Labs Vado HD camcorder that uses H.264. The first time you connect it via USB to a PC, it installs its codec so that you can playback the videos on that PC. I've done that on my laptop and it works fine.

When I connect it to my desktop, likewise, it installs its codec. However, when I attempt to playback one of the videos (for example using Media Player Classic) the application simply disappears with no error message.

I believe that this is due to a conflict with other codecs but I don't know how to determine which one.

I ran nirsoft.net's InstalledCodec tool and created a list of codecs that are installed. This list is in the attached file. (This is actually a .csv file renamed to .txt.)

How can I identify which of these codecs is causing the problem or at least reduce it down to a smaller number than I can selectively disable to do a process of elimination? Is using nirsoft.net's InstalledCodec tool to disable a codec sufficient? If not, how should I disable a given codec?

Thanks for the help!