[wp-testers] hook

[Theyagarajan S]

hi all,
i want to write a wp plugin and do its action before the theme/site is
actually loaded.what hook is the ideal one for this ?

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thanks
S Theyagarajan
http://theyagar.com
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S.Theyagarajan
Under Graduate
Department Of Computer Science And Engineering
National Institute Of Technology , Trichirapalli
India 620015