Methods, systems, apparatuses and program products are disclosed for providing execution parallelism during the DXE phase of computer start-up.Provision is made for loading a microkernel (or other kernel program) which presents itself as though it were a DXE Driver and changes a single threaded environment into multithreaded. This is while the supervisor program continues its role as loader/initiator but remains unaware that it no longer has overarching control of Driver scheduling (which has been acquired by Kernel).