Hi Hideyuki,

Setting memory files is currently not supported in that API, you can ask to support it by create a new feature suggestion

For dummies and parameters you can use the following code:

var script = protocol.GetDms().GetScript("Script Name");

var parameters = new DmsAutomationScriptParamValue[] { new DmsAutomationScriptParamValue("Param 1", "Value 1") };
var dummies = new DmsAutomationScriptDummyValue[] { new DmsAutomationScriptDummyValue("Dummy 1", new DmsElementId("agentId/elementId")) };
var result = script.Execute(parameters, dummies);
var scriptOutput = result.ScriptOutput;