U might see this kind of error message while installing patch.

1) Just open the "pac" folder(of patch).
There u will find 3 files.
2)Move these to the game "pac" folder.
U can find game "pac" folder here.

3) When u r done with above steps u will find a pop-up about 2 similar files.
Just replace them with the ones in patch.
To confirm if the patch is working or not simply open "Config" in game, check the last option if it says "Camera Movement During H Scene" Then u r good to go n enjoy it to ur hearts content.