Set clientJsLocation when using HTML_AJAX in XAMPP

Please remember to set clientJsLocation, e.g.:
$server->setClientJsLocation('C:/xampp/php/PEAR/data/HTML_AJAX/js/');

Or else, you will get an error like: Unable to find javascript file: .\pear\data\HTML_AJAX\js\HTML_AJAX.js

HTML_AJAX 0.5.6 with XAMPP 1.7.3.

The only thing I can think of that causes this is reinstalling HTML_AJAX-beta via pear install? Otherwise, I guess it's understand we should always set the path. Now you know. (speaking to self)