MS-Dos

I'm buzzy making a bootdisk manually in dos, now I'm trying to load network drivers with a commando in config.sys, but whatever driver I take, I keep getting the error that there 's something wrong in the line... (the one white the command to load the drive) I'm proberbly doïng something wrong, but I cant figger out what

A example of a command line in the config is:

DEVICE=\dos\e100b.dos

I tryed all kinds of drivers, some whit .exe others with .ini (I don't think they would work, but better tryed then find out it would)

Can someone please help me?
Thanks