VP6 decoder SDK

Is On2/Google VP8 decoder, backward comp开发者_开发问答atible with VP6? Or can VP6 video stream be decoder using VP8 decoder?

Also is their and SDK for VP6 decoding?

Is there any VP6 decoder for a commercial product (I cannot use open source)?

I tried the On2 Flix SDK, but it is for encoding only.

---

VP8 is not backwards compatible with VP6.