* first you have to download and install expert lotto free edition (if you haven't done so already)
* download updated application library from this location: http://www.expertlotto.com/files/preview/expertlotto.jar
* i recommend to copy the link above to your browser and choose 'save as' to save the file on your disk. sometimes the operating system may confuse it with a zip archive and change the file extension from .jar to .zip. so make sure that saved file name is expertlotto.jar. do not attempt to unpack the content of the downloaded file
* close expert lotto if it is running
* copy or move the saved file to expert lotto installation folder to replace the current expert lotto version. the target folder location on ms windows operating systems is usually c:program filesexpertlottolib
* start expert lotto and choose menu 'help - about' to open the about box. it should read that the application version is 4.1.2 and build number is 734 or higher.
see also this video demonstrating BETA version upgrade:
http://www.expertlotto.com/files/video/ ... grade.html