Ok, i'm posting this for my friend (He's disabled and can't read/spell etc.) and he watched some videos about the Iron Man Mod and the LCPD Mod and downloaded them. But he missed the part where you have to backup the game due to it being in text
Now we have deleting everything in the GTA IV folder and no deeper than that and now, he can't join me when I host a server but it works when he does until we run into a terrible error
I don't know exactly what it is since I don't get it and he reads it out which doesn't always turn out to well, but apparently it says "Your computer is running too slowly"
I don't know his PC specs but he can run nearly all games on full settings including GTA IV.
If you know what is going on then please tell me as for I am practically killing myself having to research all this for him.