In a message dated 00-01-31 00:02:12 EST, you write: << As it's an industry standard and well documented, DRI certainly have a working implementation of it. >> Ahh, this is well. It was the Himem.sys I was thinking of, along with the Xmsmmgr.exe (sic) that allows linear extended memory placement. As for DR-DOS and its access to said documentation, it is well documented that the LIM consortium held tight rein over said specs for a number of years, giving Microslosh an unfair advantage in the DOS market. It wasn't until Quarterdeck began to fidget with QEMM that the market had a competitor in the linear memory market. Qualitas and its 386MAX gave a decent showing, too. It was Gates Gate, and the leader who would have the audacity to steal Stacker right out from under its creator that hogged the market dominance by insisting on his own DPMI standards over VPMI which nearly choked Digital Research out of the DOS market. A similar fate befell even IBM, whose gigantism and complacency killed O/Sx. At this point, Gates is responsible for the death of a number of independent software platforms, which may, through proper and consistent support, have flourished. Cite as an example Desqview, an excellent DOS-based GUI. Soulement To unsubscribe from SURVPC send a message to [EMAIL PROTECTED] with unsubscribe SURVPC in the body of the message. Also, trim this footer from any quoted replies. More info can be found at; http://www.softcon.com/archives/SURVPC.html