how to run solo mining ?
2 options:
open your wallet, go to the debugconsole and do "setgenerate true" (might not work for all wallets/coins). Some wallets have the mining-option built-in in their gui to make it easyer for you
or
open your .conf-file, edit it more or less like this (example for litecoin)
rpcpassword=password
rpcallowip=127.0.0.1
rpcport=9332
daemon=1
server=1
gen=0
run your wallet
download a mining program, depending on wether you'll cpu mine (bad idear), GPU mine (still not that good of an idear) or if you'll mine using an ASIC. Run the program with the parameters you've entered in your .conf