I want to change this license option to per processor

Hi,
I have done installation of SQL Server 2000 Standard edition with
licensing option as per seat (no. of seats 100). By mistake I had
choosen this option. Now I want to change this license option to per
processor (no. of processors 4).
Pls advice me is there any way to change this license option without
re-installation of SQL Server.
Karanhttp://www.tkdinesh.com/faq/ans/license.html
HTH, Jens Suessmeyer.
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