I used the following and it works like a charm.

@echo OFF

REM Change the following address to your Zcash taddr.
SET ADDRESS=*My Wallet*
SET USERNAME=master0.slave0:masterslave00
SET POOL=btg.suprnova.cc:8816
SET SCHEME=stratum+ssl

START "Bminer: When Crypto-mining Made Fast" bminer.exe -uri %SCHEME%://%USERNAME%@%POOL% -api 127.0.0.1:1880

I think you needed to add the +ssl to your scheme.  I was getting an authentication error until I did that.

Someone creates a .Bat with these parameters.

STRATUM:   stratum+tcp://btg.suprnova.cc
PORT:   8816
Username: master0.slave0
Password:   masterslave00