ServiceInstaller si = new ServiceInstaller();
si.ServiceName = "MyService";

ServiceProcessInstaller spi = new ServiceProcessInstaller();
spi.Account = ServiceAccount.LocalSystem;

spi.Installers.Add(si);

this.Installers.Add(spi);

TransactedInstaller ti = new TransactedInstaller();

ServiceInstaller si = new ServiceInstaller();
si.ServiceName = "MyService";
ti.Installers.Add(si);

ServiceProcessInstaller spi = new ServiceProcessInstaller();
spi.Account = ServiceAccount.LocalSystem;
ti.Installers.Add(spi);

this.Installers.Add(ti);