#include <String.au3>
$text = "<easyAudioPlayer>easy Audio Player what's new?</easyAudioPlayer><easyAudioPlayerUpdate>Update version 3.0.0</EasyAudioPlayerUpdate>"
msgBox(0, "", StringBetween($text, "<easyAudioPlayer>", "</easyAudioPlayer>"))
Func StringBetween($sString, $sStart, $sEnd)
Local $sReturn
$sReturn = _StringBetween($sString, $sStart, $sEnd)
If @error Then Return ''
Return $sReturn[0]
EndFunc