Is there a way to download say the newest version for 1.12 with a powershell Invoke web request? Invoke-WebRequest http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12.2-LATEST/forge-1.12.2-LATEST-installer-win.exe -OutFile Forge1.12.2
Would be delightful but sadly this doesnt work