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Software Purchase Instructions

Step 1) Make payment

Â Â Secure Payments Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PayPal account not required.

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Purchase just 1 of the 3 available programs

All Quality Chess Books.rar Apr 2026

by Jacob Aagaard: Part of the famous "Grandmaster Preparation" series.

: Extremely detailed opening books designed to provide a complete lifetime repertoire. All Quality chess books.rar

: Such archives are common vectors for viruses or "trojans" hidden among the PDFs. by Jacob Aagaard: Part of the famous "Grandmaster

by Jan Markos: Focuses on the psychological and hidden aspects of high-level play. All Quality chess books.rar

Searching for a file like usually leads to forums, archive sites, or chess-specific blogs that share curated collections of Grandmaster-level literature. Quality Chess is a renowned publisher known for deep, rigorous analysis, often used by professional players. What is "Quality Chess"?

Quality Chess is a premier publishing house founded by GMs Jacob Aagaard and John Shaw. Their books are famous for:

Purchase 2 of the 3 available programs:

by Jacob Aagaard: Part of the famous "Grandmaster Preparation" series.

: Extremely detailed opening books designed to provide a complete lifetime repertoire.

: Such archives are common vectors for viruses or "trojans" hidden among the PDFs.

by Jan Markos: Focuses on the psychological and hidden aspects of high-level play.

Quality Chess is a premier publishing house founded by GMs Jacob Aagaard and John Shaw. Their books are famous for:

Purchase all 3 available programs

Quantity	Simply Modbus RTU/ASCII Master & Simply Modbus RTU/ASCII Slave & Simply Modbus TCP Client
1 license for 1 user or 1 PC for 3 programs	$162
2 licenses for 2 users or 2 PCs for 3 programs	$288
site license unlimited installations at one location within a single company for 3 programs	$585

Prices in US dollars.

Step 2) Receive license by email

After payment is made you will receive an email from Paypal with the transaction details.
A second email from with the license key code will follow.

Help stop server filtering, which is a common occurrence.
Please add to your address book to help.
The license message will be sent to second email addresses if requested.

License are normally sent out within an hour during office hours
but may take overnight due to time zone differences. Your patience is appreciated.

Office Hours are Monday thru Friday, 8AM - 4PM MDT (GMT-0700)

Step 3) Enter the license in the program

The license is entered in the program by using the 'Enter Key' button on the demo mode startup screen. This removes all polling limitations and the startup screen.

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