max RAM limitation in windows 98

can you believe it, today in 2010, i still installing windows 98se!
this happened because the tax program that can only works in native DOS.
but since its been years ago that i last installed this OS, i haven’t met this problem i encounter today:
Insufficient memory to initialize Windows.
Quit one or more memory-resident programs or remove unnecessary utilities from your CONFIG.SYS and AUTOEXEC.BAT files, and restart your computer.

ok, so then i like always put the quoted “Insufficient memory to initialize Windows”
in google, it show me to microsoft kb page: http://support.microsoft.com/kb/184447
there it said it is because i installed memory more than windows 98 can handle which is more than 512 mb ram.
so it said to open the system.ini file and add in [386enh]:
MaxPhysPage=30000

also from other kb, just to make sure the program will run smoothly, i add a line in [vcache]:
MaxFileCache=524288

so i start the windows, in early boot i push f8 and select command prompt only, executing edit.exe, open file system.ini in folder windows, edit/add the limitation line like mentioned above. and restart the system again…
and it works!

but there is blue screen error about 32 bit pci/ide child device, it said it will change to compatibility mode, don’t know what it is, but after a restart the error is no longer. i guess the system has switched to compatibility mode, but since i get no performance loss, i just cross my finger, hope everything will “just work”…