please explain your terms

> WINdow EXPLORER and internet explorer.

what do you wanna do with them?

> Who can tell me how to copy whole folder from c: to d: (CD)?

I don't think you can do this under DOS, but it is possible to copy the folder to a network drive under DOS command. "net use" should be fine.

> How to go one up folder ?

Do you mean the parent directory? DOS command for that is "cd .."

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