Good evening: Thanks very much to Eric Auer and Michael Devore for all of the suggestions! The support has been OUTSTANDING!
OK, I have learned a bit more. Apparently, NTFS4DOS is slightly smarter than the documentation would have me believe. I did some experiments with MS-DOS 6.22 and let the wizard create the floppy disk. It wrote just "NTFS4DOS" to autoexec.bat with something called vtmode.com. I removed that from autoexec.bat since I have NO IDEA what it is. So, I learned that you can just run NTFS4DOS from the command line, without any arguments, and it behaves pretty well and does what I need (maps the NTFS partition and it stays mapped until exiting). Under MS-DOS 6.22, newest version of UMBPCI: Conventional Memory 640 138 501 Upper 64 0 64 Under MS-DOS 6.22, EMM386.EXE (MS-DOS flavor) Conventional Memory 640 226 414 Upper 51 0 51 FreeDOS, development kernel, command.com, sys Newest HIMEM, Newest UMBPCI Conventional Memory 639 141 498 Upper 64 4 60 FreeDOS, development kernel, command.com, sys Newest HIMEM/EMM386 Conventional Memory 639 384 255 Upper 64 4 60 Trying to use installhigh/loadhigh doesn't help and, in fact, crashes MS-DOS 6.22 (error messages from FreeDOS). There are argument differences in himem and emm386: MSDOS: (from Datapol's documentation) DEVICEHIGH=a:\HIMEM.SYS /NUMHANDLES=128 /TESTMEM:OFF /Q FreeDOS: DEViCEHIGH=a:\fdos\himem.exe MSDOS: (based on sheer guesswork) DEVICEHIGH=a:\emm386.exe noems FreeDOS: (based on suggestions) DEVICEHIGH=a:\fdos\emm386.exe x=test memcheck vds noems max=256M Does this spark any ideas? It looks like chasing another K of Upper memory won't help. It also looks like installhigh/loadhigh isn't the way to go. (Thanks to Eric Auer for suggesting that or I probably wouldn't have noticed the significance of that autoexec.bat file). Thanks again for the great support! I appreciate it a lot. Mark ------------------------------------------------------- This SF.Net email is sponsored by the 'Do More With Dual!' webinar happening July 14 at 8am PDT/11am EDT. We invite you to explore the latest in dual core and dual graphics technology at this free one hour event hosted by HP, AMD, and NVIDIA. To register visit http://www.hp.com/go/dualwebinar _______________________________________________ Freedos-user mailing list Freedosemail@example.com https://lists.sourceforge.net/lists/listinfo/freedos-user