This applies to both Vista32 and XP32 and is very likely the same as https://sourceforge.net/tracker/?func=detail&aid=1971648&group_id=151072&atid=779831
I have several files that trigger this problem, but cannot attach as they are all >256K
I will be very happy to send separately by email.
They all hang the worker thread that scans directories to update the info in the media lib
In Process Explorer I have to close the file handle to de-freeze WMP
In one occasion I ve also seen file handles leaking copiously, i.e. wmplayer.exe starts opening all the files in my music directory and never closes them.
This happens with .m4a produced and tagged by iTunes.