I have a client who wants to change the license key on several of his machines. All the machines were installed with the same Windows 2000 CD and license key even though he had valid keys for each box. Now the SBA is giving him a hard time about it and wants him to change the keys on all the machines. Again this is Windows 2000 Professional and we do not want to have to do entire reinstalls on all these machines. Way too much other stuff to have to sit and reinstall on all these machines. I have searched high and low for a tool that will allow me to just change the key value in the registy to no avail. I have found lots of tools for XP and Vista, but need a 2000 version. Is their a Microsoft tool available?