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Undocumented DOS Commands

Microsoft

I used to work in a computer store and one day we had a gentleman call in with a smoking power supply. The service rep was having a bit of trouble convincing this guy that he had a hardware problem.Service Rep: Sir, something has burnt within your power supply.

Customer:
I bet that there is some command that I can put into the Autoexec.bat that will take care of this.

Service Rep:
There is nothing that software can do to help you with this problem.

Customer:
I know that there is something that I can put in... some command... maybe it should go into the Config.sys.

[After a few minutes of going round and round]

Service Rep:
Okay, I am not supposed to tell anyone this but there is a hidden command in some versions of DOS that you can use. I want you to edit your Autoexec.bat and add the last line as C:\DOS\NOSMOKE and reboot your computer.

[Customer does this]

Customer:
It is still smoking.

Service Rep:
I guess you need to call MicroSoft and ask them for a patch for the NOSMOKE.EXE.

[The customer then hung up. We thought that we had heard the last of this guy but NO... he calls back four hours later]

Service Rep:
Hello Sir, how is your computer?

Customer:
I call MicroSoft and they said that my Power Supply is incompatible with their NOSMOKE.EXE and that I need to get a new one. I was wondering when I can have that done and how much it will cost...

Moral: Remember those hidden DOS commands!