Bruce and Group: Sorry about the incomplete message. In regards to getting IFEFFIT to work on Win 98: I changed config.sys per Matt's suggestion: -- that changed the MSDOS error message from "Out of environment space" to "too many parameters" when I hit the desktop icon (this is what I still see when I hit the desktop icons) On Matt's suggestion I then looked at the xxxx.bat files in c:\Program Files\Ifeffit: -- I noticed that they weren't automatically installed, so I ran the "Make bats" application, after which I was able to run all the software if I selected it directly from the c:\Program Files\Ifeffit folder. After reading the last message I added Zhan's command to my autoexec file -- but it hasn't seemed to have made a difference in being able to use the desktop icons on my computer. It does still appear that I can get at the software directly by clicking on it from it's actual folder. I hope this helps. I'm just excited to see that it appears to work! Thanks! Kristine Witkowski Northwestern University