I solved this intalling ffdshow decoding filter (
http://sourceforge.net/projects/ffdshow) together with DivX 5.1.1 (
http://download.divx.com/divx/DivX511.exe) and XviD 1.0.1 (
http://www.roeder.goe.net/cgi-bin/fe...1-05062004.exe) codecs.
In DivX's Decoder Utility (start/programs/divx/divx codec) in quality settings disable Support Generic Mpeg-4.
In XviD's Configure Decoder (start/programs/xvid/configure decoder) disable all fourCC support for DIVX, DX50, mp4v
So the divx files will be play by DivX 5.11 codec and the XviD players by XviD codec instead generic or support ones.
There is no changes in ffdshow decode filter