The standard version of IE Tab is free for personal use. You can download it directly from the official or Microsoft Edge Add-ons store. It provides robust Internet Explorer emulation without costing a dime. 2. Official Enterprise Licensing
The phrase "Extra Quality" does not refer to an official version of the software. free license key for ie tab extra quality
If you want to configure your system for legacy website compatibility, let me know: The standard version of IE Tab is free for personal use