How to register

Why the program should be registered?

Product is distributed on the try-before-you-buy principle. This allows you to try the program to ensure it meets your needs before you register. But unregistered copies of the product may be only used for evaluation purposes.

If you like this program and decide to keep it, you will need to purchase a registration key. Registration gives you the right to receive technical support and use features available only for registered users.


At first, you should obtain a registration key. You can purchase it on-line either by credit card, bank transfer or check. Ordering by Phone, FAX, and postal mail is also available. Please visit the registration page and purchase the program.

Registration page:


You can purchase a single or site license(s). Single license allows you to use the program on up to 5 workstations. The Site License allows use of this product on an unlimited number of workstations. This license cannot be used for redistribution of the product to 3rd parties. Please see the discount for site license listed above.

  • Single license (up to 5 computers): $14 (USD)
  • Site license (unlimited): $49 (USD)

Note: The price can be changed in future.

Entering Registration Key

After purchasing you will receive an e-mail with registration key and instructions.

  1. Right-click on the SemTop! icon in the tray-area.
  2. In the popup menu click on Registration and Enter Registration Key...
  3. Fill out appeared Registration form and press Ok.
  4. Registration complete. Thank you.

<< Previous page Next page >>