INT 2F C - DOS Protected ModeOne of the operating modes of the 80286 and higher Intel processors, in which addresses used by programs no longer correspond to physical addresses and the CPU enforces various protection mechanisms designed to prevent one program from disrupting other programs or the operating system.  See also Real Mode, Virtual-86 Mode. Services (DPMSsee DOS Protected-Mode Services) v1.0 - DPMSsee DOS Protected-Mode Services STARTUP BROADCAST
	AX = 43E3h
	BX = 0000h
	CX = 4450h ('DP')
	DX = 4D53h ('MS')
	ES:DI -> DPMSsee DOS Protected-Mode Services server structure (see #02791)
Return: BX = status
	    bit 0 set if server is not allowed to load (e.g. some resident
		  program is incompatible)
Note:	this callout is made while the potential server is running as a normal
	  real-mode DOS program, so there are no BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly./DOS re-entrancy issues
SeeAlso: AX=43E0h,AX=43E4h