The following services are obsolete. If called, they immediately return zero in the EAX register:
_GetGlblRng0V86IntBase, _MapFreePhysReg, _SetFreePhysRegCalBk, _UnmapFreePhysReg, _XchgFreePhysReg
In addition, the _GetSysPageCount and _GetVMPgCount services do not return meaningful values, and the _GetSetPageOutCount and _PageOutDirtyPages services have been deleted.