Installation (requires GTAV 1.38 or higher):
-open *.oiv file with "OpenIV 2.8" (or higher)
Important: "OpenIV.asi" needs to be present in game folder while running the installer!

Deinstallation:
-open "uninstall.oiv" with "OpenIV 2.8"
 or go to "mods\update" and rename/delete "update.rpf"