Just started using XP on a new computer - copied wav files to CD, then to the new computer. It won't let me associate the wavs to open with Sound Recorder. The message box says: "filename.wav is not a valid Win32 application." I tried to to set the association via Folder Options but get the same message. But!, if I open Sound Recorder first, then open the wav file from the menu, it will play fine. This does not help with associating the files, though. They DO allow themselves to be set to open with Real Player, Windows Media, etc. Sound Recorder is even listed as a "suggested program" on the Open With menu! Also, the wav files themselves seem to be fine, I'm using several as Event Sounds, and the computer seems to be okay with them. Hope someone can help?