I use google to find more about CODECs
But the "encoder" you used should have installed the needed codec and if not, then that's a product defect that you deal/ask them about. I didn't write that one so I can't fix it.
I see two issues here. One is Windows and the other is that streaming. Each area is a minefield of issues.
For Windows I may try http://en.wikipedia.org/wiki/GSpot and will not discuss OpenCandy in MediaInfo.
For streaming that is a tar pit of support so be sure to find folk that will support you.