[RMVX ACE] SCRIPT REQUEST! BACKGROUND DOWNLOAD

Hi, everyone; I'm making an update to one of my games, but I'd like the update to be downloaded while playing, so that the player wouldn't need to download the update (or DLC, if you wish) using an external program or site; is there any script that can do this? I had one that was similar, but hated how the interface worked. Thank you in advance. And, sadly, the script I had, worked only for VX and XP. :(.