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What do I do to make the edit command appear when such command or function is missing in my Windows applications?
You did not mention what kind of operating system your using on your computer, i assume if your using a 64 bit versions of windows you didnt know that it does not support the edit command in the windows command line.
If you need to edit something you can do that by using your notepad command from the command line.You can create and edit your file once you save it on your directory.
In another case if your using a windows xp operating system and your edit command is missing it means that the path variable has changed and no longer includes the windows\system32 folder, at the command prompt you can type set or path and you will see its missing, what you can do is right click on my computer then properties, then advanced then finally environment variables,you need to click path and choose edit then add this variable %SystemRoot%\system32 and click ok, this would work and bring back your edit command.