I'm running into this same problem. I even tried filling the drive to capacity, and switching the TEMP and TMP variables to point to a smaller drive. What's the solution? It's a 32-bit SETUP.EXE, so MKCOMPAT shouldn't do anything.I have a CT4810, but I haven't tried playing with the Windows drivers yet. EDIT: Can ANYONE reading this successfully run the setup program in sbldos2.zip ? It occurs to me the whole setup package might be missing some vital component. I can verify that it did fail in the same ways for me as for you guys, so it looks like it's broken. However i got my OEM Soundblastar Live SB0100 working in DOS (FreeDOS) with these drivers http://www.driverguide.com/driver/detail.php?driverid=255275 and a small help from this http://www.mdgx.com/newtip18.htm#DGSBL Wish you best of luck, I'm off for some Sierra retrogaming on REAL HARDWARE!