var fileStreamObj = shell.serviceManager.basics.fileStream; var streamWriterObj = shell.serviceManager.basics.rawStreamWriter; fileStreamObj.openForWrite("c:\\temp\\test.txt", false, true); streamWriterObj.stream = fileStreamObj; streamWriterObj.writeInt32(1024); streamWriterObj.writeInt32(-1 * 1024*1024); fileStreamObj.close();