Intermec PENKEY 6100 Programmer's Reference Manual page 136

Communications and Device Support
" NOTE:
If FIXEMM.EXE is not loaded, 6100 Computer locks up on Suspend.
device=d:\elanump.sys /x=C000,C400,D400,D800,DC00,E000
Upper Memory Provider: ELANUMP.SYS
DOS=UMB
DEVICE=HIMEM.SYS
DOS=HIGH
DEVICE=ELANUMP.SYS /X=C000, C400
DOS=UMB
DEVICEHIGH=...
R
5-24 PEN*KEY 6100 Computer Programmer's Reference Guide
device=d:\elanump.sys /x=D400,D800,DC00,E000
upper memory provide
: /X=aaaa[,aaaa]
device=d:\elanump.sys /X=C000
SECTION 5