Several Pocket PC Media questions

Dear Experts

Appreciate your answer for below questions!

1. Is there a feature comparison table between various versions of Windows
Media Player Mobile?
2. Does WMP mobile support Fast Feature (FastCache; FastStart;
FastReconnect)? If yes, from which version?
3. Does WMP mobile support WMDRM and License Acquisition? If yes, from which
version?
4. Does WMP mobile support RTS & RTSP? If yes, from which version?

Thank you very much!
.

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