After asking like 3-4 times, it seems no one on this forum, not even the Developer, knows how to Dual Mine ETH + SMARTCash ( keccak ) on Windows.
Whatever you do or try, Authentication failed, even if the username and password are 100% valid.
Really Really poor community !
This is my batch setup for ETH+SMART it work correctly for 2 week`s but Im not mine smart anymore. Now Im on ETH+XVG. Maybe that`s help you.
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal
wallet -epsw x -dpool stratum+tcp://pool-eu.smartcash.cc:3333 -dwal
user -dcoin keccak -dpsw
password -dcri 7 -etha 0 -estale 0 -tstop 70