As you have been told SEVERAL times before.
Install gtavc and vcmp normally, then set the compatibility mode to Windows 98 / ME to gta-vc.exe and vcmp.exe and it WILL work (AFTER that go set your controls, resolution and such from single player)
For the record, do not trust system requirements lab. It shows false information about if you can run the game or not, for me it showed I couldn't run CoD2, but only mediocre, when infact I had 1000 FPS (on my old PC)