Also try playing with these settings.
DEVICE=C:\WINDOWS\EMM386.EXE D=64 FRAME=E000 /I=B000-B7FF RAM
I resently built a DOS 6.2/Win3.11 machine and couldn't get anything to load high till I added this stuff to the the emm386.exe line.
This is bacisly what my config.sys look like on my DOS machine.
DEVICE=C:\WINDOWS\HIMEM.SYS
DEVICE=C:\WINDOWS\EMM386.EXE D=64 FRAME=E000 /I=B000-B7FF RAM
DEVICE=C:\WINDOWS\SMARTDRV.EXE 1024
STACKS=18,256
FILES=35
BUFFERS=25,0
DOS=HIGH
DOS=UMB
DEVICEHIGH=C:\HXCD-ROM\CDROM.SYS /D:NCI000 /DMA /V
I actually of a menu boot on my machine. I have difference configuration for each game I play. P1, WCA, WC ACADEMY, ST DS9, and RENEGADE Jacob star. I just choose which game I want to play and I'm good to go.