{
"pools" : [
   {
      "url" : "http://127.0.0.1:9332",
      "user" : "username",
      "pass" : "password"
   }
]
,
"intensity" : "14,14",
"vectors" : "1,1",
"worksize" : "256,256",
"kernel" : "scrypt,scrypt",
"lookup-gap" : "2,2",
"thread-concurrency" : "7040,7040",
"shaders" : "0,0",
"gpu-engine" : "900-900,900-900",
"gpu-fan" : "0-85,0-85",
"gpu-memclock" : "1375,1375",
"gpu-memdiff" : "0,0",
"gpu-powertune" : "0,0",
"gpu-vddc" : "0.000,0.000",
"temp-cutoff" : "95,95",
"temp-overheat" : "85,85",
"temp-target" : "75,75",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

I guess my command line parameters would be

cgminer.exe -o url -u user -p pass --scrypt