INT 21 O - Novell NetWare - COPY FILE TO FILE (FCBsee File Control Block)
	AH = E6h
	CX:DX = number of bytes to copy
	DS:SI -> opened source FCBsee File Control Block
	ES:DI -> opened destination FCBsee File Control Block
Return: AL = error code
	CX = ???
	DX = ???
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation