Only a single instance of this software can run:

If you fail to open the software, perhaps you have simultaneously installed two pieces of identical software. To solve it, you can find the software that has been working in the system tray area, or you can close the previous software to make it work.

How to get that free book?

Click this button

Or press F2

If you have any question or new requirements, feel free to contact us by sending a mail to the following email address, and we will reply to your mail within 24 hours.

Email: [email protected]

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