hello, how the copy command was prograamed in dos.and how it is combined to command.exe

Say that again .. Please restate your question

Let me try to decipher this one(I am shooting in the dark). " how the copy command was prograamed in dos.and how it is combined to command.exe" InDOS, there are two types of command. Internal, and external. Commands like "copy, dir, rename, del, etc" are internal and you will not see them in the directory. Once DOS is loaded to your system, you will be able to execute these commands. Other commands like "edlin, format, etc" are external commands and requires the files to execute them. You will see these files when you look at your directory. I'm not sure if I'm heading the right way, so I will stop. But I answered these with a smile, so let me know and I will continue.

It sure is a vague question ... Let me get something clear - here's two different command interpreters: COMMAND.COM - DOS / Win9x 's command interpreter CMD.EXE - NT systems' command interpreter Now, I reckon you refer to CMD.exe when you said "command.exe", right? Let's get another shot (in the dark): as The Judge said, the COPY command is an internal command. So, it's probably part of CMD.exe (as well as of COMMAND.COM) itself. -- Leonardo Pignataro - Secret_Doom -- secret_doom@hotmail.com www.batch.hpg.com.br