acrorel って誰？

AIRでカレントディレクトリってどうやって取得するんですかね…。
ってことで色々試していて、わざとエラーをおこさせてみたら…。

ArgumentError: Error #2004: パラメータの 1 つが無効です。

	at Error$/throwError()

	at flash.filesystem::File/set nativePath()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\File.as:629]

	at twitterIconChanger/::iconDisplay()

	at twitterIconChanger/::initApp()

	at twitterIconChanger/___twitterIconChanger_WindowedApplication1_applicationComplete()

	at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()

	at flash.events::EventDispatcher/dispatchEvent()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\EventDispatcher.as:209]

	at mx.core::UIComponent/dispatchEvent()

	at mx.managers::SystemManager/::preloader_preloaderDoneHandler()

	at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()

	at flash.events::EventDispatcher/dispatchEvent()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\EventDispatcher.as:209]

	at mx.preloaders::Preloader/::displayClassCompleteHandler()

	at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()

	at flash.events::EventDispatcher/dispatchEvent()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\EventDispatcher.as:209]

	at mx.preloaders::DownloadProgressBar/::timerHandler()

	at mx.preloaders::DownloadProgressBar/::initCompleteHandler()

	at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()

	at flash.events::EventDispatcher/dispatchEvent()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\EventDispatcher.as:209]

	at mx.preloaders::Preloader/::dispatchAppEndEvent()

	at mx.preloaders::Preloader/::appCreationCompleteHandler()

	at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()

	at flash.events::EventDispatcher/dispatchEvent()[C:\Documents and Settings\acrorel\Local Settings\Temp\aslibc-28157\EventDispatcher.as:209]

	at mx.core::UIComponent/dispatchEvent()

	at mx.core::UIComponent/set initialized()

	at mx.managers::LayoutManager/::doPhasedInstantiation()

	at Function/http://adobe.com/AS3/2006/builtin::apply()

	at mx.core::UIComponent/::callLaterDispatcher2()

	at mx.core::UIComponent/::callLaterDispatcher()

acrorelって誰？（ここにはWindowsならユーザー名が入ります）

AIRの開発者の人？