Mine.bat file:
\path\to\sgminer.exe -k darkcoin -d 1 -o 10.x.x.x:56789 -u foo -p bar -I 13 --worksize 256 ..etc

quebecoin.conf:   <--- no rpcconnect= here so it binds to all interfaces
rpcallowip=10.x.x.x
rpcport=56789
rpcuser=foo
rpcpassword=bar
addnode=54.86.39.92
addnode=54.85.54.67
addnode=54.86.58.113
addnode=54.86.60.197
addnode=54.86.60.189
addnode=54.84.203.45
daemon=1
server=1
listen=1


wallet.bat
start quebecoin-qt.exe -conf=c:\users\my-userid\appdata\roaming\quebecoin\quebecoin.conf


This starts the wallet and syncs even if I delete the peers.dat file.  The config file is read and my miner can connect and solo mine.