It's talking about the config.bat, config.sys, or config.com file (don't remeber 95 much) but from what it sounds like is that the file that tells 95 what config (DMA, IRQ and whatnot) was corrupted or deleted. If you have a 95 install disk you can just re-install 95 (or better yet upgrade to atleast 98SE) over the windows directory again and it should replace the config file.