Been trying everything the last few days.  I can't stop my 2gb video card from trying to mine Ethereum and causing the DAG error.  These are just a couple bat file I have tried,

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

EthDcrMiner64.exe -epool us1.ethermine.org:4444 -ewal ****  -epsw ****  -mode 1-123 -tt 68 -allpools 1 -dpool stratum+tcp://dcr-us.coinmine.pl:2222 -dwal ***** -dpsw ****  -mode 0  -dcri 15 -dcoin dcr
pause

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

EthDcrMiner64.exe -epool us1.ethermine.org:4444 -ewal ****  -epsw ****  -di 123 -tt 68 -allpools 1 -dpool stratum+tcp://dcr-us.coinmine.pl:2222 -dwal ***** -dpsw ****  -di 0123 -dcri 15 -dcoin dcr
pause