 The DPMS server must be loaded after the memory managers (and before the drivers using it), either as a "DPMSXXX0" device driver per DEVICE statement in CONFIG.SYS (preferred method), or later as a TSR.For debug purposes (for example in conjunction with Microsoft's WDEB386.EXE), SDK-versions of EMM386.EXE 3.00 can alternatively provide DPMS services via through a built-in DPMS.SYS module, then running at ring 1 instead of ring 0, as with the stand-alone version of DPMS.EXE.The option allows debugging under older NuMega SoftICE versions.