I think he merely means that some games seem to utilize the
hotpatch* nature of Windows DLLs to hook in their own code. Not that
I'd not like to have the full hotpatch functionality in ReactOS...
;)
(*) A nop-like instruction near the beginning of a function which
can be replaced by a relative jump to a few bytes back where a jump
to an alternative implementation can be included. Normally used to
implement a patched version of the function for Windows' hotpatching
functionality.