 Stac Electronics also produced a DPMS-enabled stand-alone version of Stacker 4.PC-Kwik Corporation's Super PC-Kwik 6.xx for DOS and their Power Pak 4.0 for Windows also included the DPMS-enabled disk cache SUPERPCK in 1994.Some third-party DOS driver suites such as the Eicon Diva or High Soft Tech GmbH (HST) Saphir CAPI ISDN drivers or PCMCIA/PCCard driver stacks such as Award's CardWare 2.5 (or higher) are known to support DPMS as well.