It supported. DivFix++ don't look file extension but internal structure of file. If it's standard RIFF (avi) file, than DivFix++ needed to make it's job. Do you sure about if your file is xvid? Don't trust the extension. There is billions of renamed file at internet. Open your file with http://wxhexeditor.sf.net program, and look first letters. Every AVI file starts with "RIFF" letters. I think your file is asf/wmv file with xvid extension.
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It supported. DivFix++ don't look file extension but internal structure of file. If it's standard RIFF (avi) file, than DivFix++ needed to make it's job. Do you sure about if your file is xvid? Don't trust the extension. There is billions of renamed file at internet. Open your file with http://wxhexeditor.sf.net program, and look first letters. Every AVI file starts with "RIFF" letters. I think your file is asf/wmv file with xvid extension.