http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/user-manual/filter-file.html
It is not necessary when using
MS products, and will cause corruption of all documents that use 8-bit character sets other than Latin-1.
It's mostly worthwhile for Europeans on non-MS platforms, if weird garbage characters sometimes appear on
some pages, or user agents that don't correct for this on the fly. shockwave-flash A filter for shockwave haters.