static void Main(string[] argv) { Guid guid = new Guid(appGuid); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); //auto update---------------------------------------------------------------- string s = GlobalSetting.GetConfig("AutoUpdate", "1/1/2015 0:0:0"); if (s != "0") { DateTime lastUpdate = DateTime.Now; if (DateTime.TryParse(s, out lastUpdate)) { //Check for update every 7 days if (DateTime.Now.Subtract(lastUpdate).TotalDays > 7) { Process p = new Process(); p.StartInfo.FileName = GlobalSetting.StartUpDir + "igcmd.exe"; p.StartInfo.Arguments = "igautoupdate"; p.Start(); } } } //get current config GlobalSetting.IsAllowMultiInstances = bool.Parse(GlobalSetting.GetConfig("IsAllowMultiInstances", "true")); //check if allows multi instances if (GlobalSetting.IsAllowMultiInstances) { Application.Run(formMain = new frmMain()); } else { //single instance is required using (SingleInstance singleInstance = new SingleInstance(guid)) { if (singleInstance.IsFirstInstance) { singleInstance.ArgumentsReceived += SingleInstance_ArgumentsReceived; singleInstance.ListenForArgumentsFromSuccessiveInstances(); Application.Run(formMain = new frmMain()); } else { singleInstance.PassArgumentsToFirstInstance(Environment.GetCommandLineArgs()); } } } //end check multi instances }