Ok, I've been reading up on a few programs that you can make portable so you can put them on a USB flash drive or CD, and have added a few like Firefox, Foxit Reader, this AV program called ClamWin, 7-zip, and finally Media Player Classic. I read in the documentation for MPC on the sourceforge page that you can add external filters if you have the DShow .dll or .ax for that codec. My problem is, that it doesn't seem to work when I go to a computer that does not have those codecs initially installed. What I've done so far, is create a folder on my USB drive that has MPC and the .ini file within it to hold my settings. Within this folder is another folder called Codecs, which is where I put the DShow .dll and .ax files I found on my computer. When I check under External filters, and see the codecs I added, they are there, but it says <not found!> next to the codec. What is it that I'm not doing properly here? It said that if I had these files I could play it on a computer that doesn't have them installed, but it doesn't seem to work out that way. I've already done a few things, but today was the first time I checked with a computer that didn't have these codecs installed prior. Right now, I'm mainly just trying to set up playback for DivX/Xvid and OGM/MKV wrapped files. I also used Universal Extractor to try and get all the components of the FFDshow intstaller and add the main .dll's to my Codecs folder. Right now I'm trying to look for a way to get Haali's Media Splitter to work with this configuration, because all I need to play MKV wrapped files is FFDshow and this. If anybody has suggestions, links, or the know-how to set this up, please let me know.