https://ethermine.org

Copy this in start.bat

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

EthDcrMiner64.exe -epool stratum+ssl://eu1.ethermine.org:5555 -ewal YourEtherAdrress.YourWorker -allpools 1 -mode 1