WP categories as subdomains

Need to transform a specific WP categories into subdo开发者_开发百科mains. i've tried "WP-subdomains" but not working with 3.x . any visible solutions for that? with no problems or broken links!

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Alias and Mod-Rewrite in Apache Config would be an option.

Create vHost for the Category and place the rewriting .htaccess-File in the vHosts document root.