Dos error

How to recover from doss error 4?
While working with batch files and usually in case of command prompt or 16 bit programs we generally come across a error which is called as doss error 4.

Here is the solution to overcome this problem:
 Go to My computer>c drive>windows>system32>search for a file called config.nt
then open it with notepad

u will get some kind of file like this.Go to bottom of the page and u fill find Files nd Buffer size keeping in mind that buffer size should be half of the size of Files size nd then done ur problem will be solved.
Courtsey:INTERNET