I have recognized that commented @Library annotation is not considered as commented.

My strategy has the following code:
// @Library("C:/Users/kyle/Documents/JForex/Strategies/jforexlib.jar")
@Library("C:/Documents and Settings/Administrator/My Documents/JForex/Strategies/jforexlib.jar")

And the result:
05:45:53 File C:\Users\kyle\Documents\JForex\Strategies\jforexlib.jar not found.
05:45:53 Compiling ExpertCandles.java

It's clear because there is no such path on the system C:\Users\kyle\Documents\JForex\Strategies\jforexlib.jar

It is the case, however only the first annotation is read (whether commented out or not), so just try to swap the lines i.e.:
@Library("C:/Documents and Settings/Administrator/My Documents/JForex/Strategies/jforexlib.jar")
//@Library("C:/Users/kyle/Documents/JForex/Strategies/jforexlib.jar")