Hi my name is Mario. I use Windows XP and I have been using WMP 10 for months without any problems. However in the past 2 weeks I can't make any file play. Evertime I try to play a file I get: Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file. (More information shows thats a C00D1199: Cannot play the file) I have done everthing to correct the problem myself... WITHIN WMP 10 All the file types to play are checked (asf, wmv, avi, wav, mpeg....etc) Player Settings Is set to download codecs automatically (it doesnt download the codecs) Is set Connect to the Internet (overrides other commands) INTERNET PROPERTIES Internet Security Level for this zone is set to medium (default) I RE-INSTALLED WMP 10 I RE-INSTALLED the video & audio drives. I even tried to use system restore to a previous month and nothing!!!! Im going crazy !!!! I already checked for viruses and for system errors using Norton Antivirus and Norton Disk Doctor WMP ONLY PLAYS "Windows Media Audio/Video file" type and the rest of the files have been designated as "Movie Clip" type. Because WMP is not working I can only see videos with InterVideoWinDVD (but I miss WMP) I hope someone out there will have a new idea that I haven't tried yet. I will really appreaciate any kind of help Sincerely Mario. I think this is a good challenge to anyone!!!