Drop shadow on every side of a borderless form?

Drop shadow on every side of a borderless form?

I've got a Form that has FormBorderStyle set to None. I've overridden
ClientParams and added 0x20000 to the ClassStyle. This gives me a form
with drop shadow on the right and bottom edges.
If you look at a form with FormBorderStyle set to Fixed3D then it has a
drop shadow on every side, is it possible to do this with FormBorderStyle
set to None?