For Example I have 5 mining rigs and I want to point them all to BTC Guild
how can I set the worker in Stratum-mining-proxy?
Start running stratum proxy on one of the machines in command line "mining_proxy_1.1.1.exe -o btcguild.com -p 8332"
Then in your miner set the server to connect to is your local ip that would be 127.0.0.1:8332
Then just use your regular username and password for workers.
If you want to point out your other machines to stratum just put in the ip address of the machine already running stratum.
Also easier just use cgminer 2.8. You don't need stratum because it will automatically connect on stratum.