SC2, being an old DOS game, requires conventional memory (the first 640 kilobytes of your machines memory) and then expanded memory for sounds and music. If you don't have enough memory, then the game simply won't run. This is the problem you are experiencing, not enough conventional memory. Even if your machine has 32 MEGS of memory, SC2 doesn't care. If this is the first time you have ever heard of conventional memory, then you missed the oh so fun days of DOS gaming (sarcasm). Here are some suggestions on how to free some conventional memory up:
1) If you are trying to play SC2 from the CD-ROM, COPY the ENTIRE GAME to the harddisk. Do this because the CD-ROM drivers require memory that you need to get freed up!
2) Now edit your autoexec.bat and config.sys to match these:
config.sys: (In Windows type 'sysedit' in Start->Run or in DOS type 'edit config.sys')
DEVICE=C:\WINDOWS\HIMEM.SYS
DEVICE=C:\WINDOWS\EMM386.EXE RAM
DOS=HIGH,UMB
rem DEVICEHIGH=C:\WINDOWS\COMMAND\ATAPI_CD.SYS /D:MSCD000 **
autoexec.bat: (In Windows type 'sysedit' in Start->Run or in DOS type 'edit autoexec.bat')
rem LH C:\WINDOWS\COMMAND\MSCDEX.EXE /D:MSCD000 /M:12 /L:E **
rem LH C:\MOUSE\MOUSE.EXE **
SET BLASTER=A220 I5 D1 T4 ** (sound initialization)
LH C:\WINDOWS\AU30DOS.COM ** (sound driver)
** please note that these lines will be slightly different on your machine because each CD-ROM drive, mouse and sound card has its own DOS drivers and configuration.
3) notice the 'rem' before the CD-ROM Driver lines. This makes DOS ignore those lines when loading the machine. When you need those drivers again, just take out the 'rem'.
4) This same exact autoexec.bat and config.sys gets me more than 590k of free conventional memory on my Micron P2 450 MHz 128 meg, plenty to run SC2.
5) Also, make sure you 'rem' out any mouse driver lines. A mouse is NOT needed at all for SC2!
6) If you can't get the sound to initialize, but have another DOS program that does work with sound, try running that program first. This might get the sound working so you can then run SC2 with sound in DOS.
(Updated: 02/23/99)