The amount of computers doing a ddos depends on the target and the purpose. In some cases 1 computer can accomplish anything you want, and in other cases you will need hundreds or even thousands of computers to accomplish your goal. Typically it is just a ping flood (although the commands sent can be more than just pings and can actually be a variety of random HTTP based requests). I'm going to assume whatever we're discussing is purely educational because typical ddos is illegal in most countries.
whats dll ? do u need to pay for it and what if i got that dll i think i download it what do i need to do whit it ad u got skype add me plz i pay u rl money if u want add lorenzo.woerdman
Download DLL from the internet. Uninstall Simba and all of that then download and re-install.