Hayssam Al-Atassi 0 Posted December 28, 2015 Share Posted December 28, 2015 I am running windows 7 pro and have just purchased and downloaded v1.7.5 for windows 64bit I can't install and getting a pop up that "This installation package could not be opened. Contact the application vendor to verify that this is a valid windows installer package" What should I do?? Link to post Share on other sites
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