Well if it works, that's what counts.  I have always had to associate .brf 
files with a program so I could actually save them as .brf files.  I am 
curious, if you look in file types under file and folder options, if the 
.brf files are listed, and if they are associated with a program.  Something 
you installed along the way might have done it automatically, or if not, 
then I know the answer is maybe.  This is usually the answer to any windows 
question.