Thanks for the responses.If I had a guess at it. It would be something in the directX Microsoft uses.
filters are all just top level addons, its nice to have, but the fundamental tools are already there in DX. It wouldn't take MS a month to add a bunch of filters. That is, if they think its necessary.Thanks for the responses.
I was wondering about DirectX but isn't that just the graphics rendering engine in Windows? It doesn't have all those filters or the ability to create new ones does it?