Can't erase movie(directory) after watching it with bsplayer

[Scream]

If I watch the movie with some other program, I can delete it and the directory it's with no problem.

Ofcourse, when I try to delete the movie, I CLOSE the program.
The error I'm getting is "The file or directory is in use".

I've been having this problem with bsplayer PRO 2.53 build 1034.
I don't know wether or not this happens in other versions, but, what I can say for sure is that this happens only with bsplayer, not with other programs.

I have a program with which I can delete files, called UnlockerAssistent.
This program has a list in which it shows all the programs using the file/directory.
In this case, that list usually shows 3-4 Explorer.exe processes.