var memStreamObj = shell.serviceManager.basics.memoryStream; var streamWriterObj = shell.serviceManager.basics.rawStreamWriter; memStreamObj.size = 1024; streamWriterObj.stream = memStreamObj; streamWriterObj.seekToStart(); streamWriterObj.writeInt32(42); streamWriterObj.writeInt32(41); streamWriterObj.writeInt32(40); memStreamObj.close();