PEAR not installed at webhost

Hello, I´m new to PEAR and also to this conference and I´d like to be sure about one, maybe trivial, question. Let´s suppose that I would like to use PEAR classes at webhost, where PEAR is not installed. So if I copy existed structure of PEAR classes to subdirectory of my web project at that host, would it work? I made several attempts on my localhost (Windows, Apache 1.3.22, PHP 4.3.2): I copied PEAR to subdirectory - when there wasn't include_path set in php.ini it didn't work, but when I set include_path in my scripts by ini_set() to PEAR directory in that subdirectory, I could use PEAR classes. Is this OK? Can it work like this also at Linux webhosts? I'm not very familiar with internal PEAR include statements etc. Thanks, Lubos