You should check the permission and compatibility of your game.exe and patcher if your using windows 7 or any version of windows try this one.
1. right click on your patcher.exe and click properties, anc click compatibility tab and select the what version of OS your using but i recommend to choose windows XP sp3 or windows 7 and don't forget to check the radiobutton "run this program as an administrator" then click apply and ok.
@Daifuku maybe add the link on your whitelist some antivirus detect that site as malware, or try to disabled your av for the mean time
