I've associated foobar with all audio formats.
When in explorer I double click a single audio file, foobar starts and play the file correctly, this also if I make a right click on a file and select "Play in foobar2000".

Bu if I select more than one file and I select the "Play in foobar2000" option in context menu, the explorer.exe crashes and foobar don't start.

This also with 0.9 version.

I've Win XP Pro and SP2 installed.

Many thanks for attention!