Config APC for XAMPP Problem

[kokookao]

hi everyone:

Anyone know how to config APC in XAMPP ?

I search a documemt in web:
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APC caching extension (I got version 3.0.6) into XAMPP on Linux (for PHP5). You will need the developer package for XAMPP to do this. (You can use the pear command to install it if you're using standard Apache + PHP.)

* Download the tarball from http://pecl.php.net/package/APC
* Unpack it and connect into the directory created.
* Run /opt/lampp/bin/phpize-x.x.x; use the version of phpize which corresponds
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My php version : 5.3.5
/opt/lampp/bin/phpize-5.3.5

Not found "include" directory name in XAMPP .

How can I do ?

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Best Regards
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kokoo KAO