Replacing Activation Files using Command Prompt in Vista

Hi I recently downloaded Windows Vista Ultimate. Everything is smooth except for the fact that you have to activate it. The activation method I used was the vista_time_crack (crack that makes vista think that you have 30 days activation left everytime you use crack). However, I was informed that this crack only works 2 or 3 times and then thats it. So, i found a new way to crack the activation. The explanation is located here:
http://www.mydigitallife.info/2007/...-by-kms-server-with-frankenbuild-files-patch/

The first part of the crack asks you to replace two files in the vista activation folders. I tried many times replacing the necessary files (using safe mode, admin mode, admin user account) and other methods. None worked. (each time it says "you do not have permission to do this" or some other bullshi*t) Someone suggested that i have to replace these files using command prompt. Does anyone know how to replace files in vista using command prompt?

 

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