Frequently Asked Questions


Yes, there is a free fully functional 21-day trial version available for Flexible TreeView which can be downloaded from our Download page. The trial version works the same as a registered version - you will get to see all features in action. Only a nag screen will remind you about evaluation.

The trial version may not be used in the production environment.

Yes, you can extend your trial period if you need additional time to evaluate Flexible TreeView features. Please contact us for details.


Every new Developer License includes a 12 months Subscription for technical support and any updates for free.
Every new Source Code License includes a 12 months Subscription for any updates for free. No technical support is provided for Source Code.

When your Subscription has expired you are free to use your Flexible TreeView license in any existing or new applications but you won't receive any future updates and our technical support.

After your Subscription expires, you will have an option to renew it with a discount for another 12 months of free updates and our technical support. This allows you to keep up-to-date with the latest versions as they become available and still receive our support when you have any technical questions.

Please note that you're eligible to renew your expired Subscription only within 30 days of the expiration date. After 30 days, you will need to purchase a new license(s) to receive free updates and our technical support.

No. Your Subscription renewal in subsequent years is entirely your choice if you want to receive new updates and our technical support for free. Refer to our EULA for more information.


Please refer to the EULA for detailed license terms.

Every engineer (developer, QA, etc.) who directly or indirectly uses software that includes the Flexible TreeView component must obtain a separate Developer License.

Because the License is assigned to a company or an individual, if the same engineer works for or on behalf of multiple companies, a separate Developer License is required for each company where the Flexible TreeView component will be used.

If you are an individual engineer (freelancer, etc.) who doing work for multiple companies or individuals, you must obtain a separate Developer License for each your client (company or individual) where the Flexible TreeView component will be used.

Regardless of the number of computers each engineer that owns the Developer License is using, the same Developer License can be used on all of them within the same company.

Please notice, that in order to prevent fraudulent orders, the temporary license could be issued for some customers without a formal notification about this. Such the temporary license need to be explicitly replaced by a permanent license when the initial license has expired. The expiration date of these temporary licenses are different per customer and when such a temporary license has expired, the appropriate error message is shown when your application is built.

Licensing is per-engineer and not per-machine, therefore you do not need an additional license for a dedicated build, test, CI, etc. machine. Just apply your existing Developer License on that machine.

No, we do not provide a site license. Each engineer in your company requires his own Developer License if they work with Flexible TreeView directly or indirectly.

No, there are no run-time licensing fees or royalties for Flexible TreeView component. As long as you own the proper amount of Developer Licenses, you are all set.

Yes, you can buy the Flexible TreeView Source Code License which includes 12 months of free updates. Flexible TreeView is a .NET component written in C#, so source code that you will receive will be on C# language. The source code free updates will be available to you within 2 weeks after the new Flexible TreeView release.
Note that:

  • You need the Developer License for every your engineer even if you bought the Source Code License. Source code is intended to learn Flexible TreeView behavior in details or customize it for your needs but they couldn't be used instead of Developer License in any way.
  • No returns or refunds are accepted on source code orders.
  • We do not provide source code support.

You may not sell or distribute:

  • The source code or any part of it.
  • A modified part of the source code.
  • A compiled version of the source code.
  • A modified compiled version of the source code.

You may sell an application which uses the compiled source code or a modification of it but with restrictions, stated in the End-User License Agreement.


There is a 30-day 100% money back guarantee. If you are not satisfied with our product for any reason, we will refund your money, no questions asked.

No returns or refunds are accepted for Source Code License or its renewal orders.

To place an order please visit our Pricing page, choose the required License type, and click the 'Buy' button.
You can click the 'Buy' button for multiple license types at the same time to compose them into one order.

Orders usually are processed within 1 business day, but may take up to 2 business days to process. When your order is processed and payment is received you will get a registration email to the address you provided while placing an order. Please, follow the steps in the email to install your license.

After Purchasing

To provide you with high quality purchasing process in a secure environment, we cooperate with the international software registration service 2Checkout.

If you have questions about payments, ordering or shipping procedures, or if you have ordered Flexible TreeView and would like to review your order information, please visit Shopper support page.

You can download the latest trial version of Flexible TreeView on the Download page.

The registered Flexible TreeView installation and license keys are delivered electronically to the email address you provided while placing an order.

The delivery is free and does not enforce any additional shipping fees.

Please contact us via and we will send you the latest version that is eligible for your license.

Please note that if your License Subscription has already expired, you are entitled to the latest version that was released before your Subscription expired, and that version may not be the latest. Keep your License Subscription renewed to get the latest possible version and our technical support.


We want you to get the most from our product long after the initial purchase and installation and we are dedicated to ensuring that any issues are resolved to your satisfaction.

We provide our support via email.

Please include the following information into your support request:

  • Flexible TreeView version number.
  • Visual Studio and operation system versions (if applies to your problem).
  • Description of the problem.
  • Necessary steps to reproduce the problem.
  • Create and attach the sample project if possible. This is extremely helpful to help us reproduce the issue. Please, do not send us the code in e-mail as text rather create the sample project and send it.

Please send your support requests from your registered email address to

Support requests are generally processed within 1 business day, but may take up to 3 business days to find a solution of your issue.

If you did not receive our response within the specified response time it means that we didn't receive your message which could be due to the spam filtering on either your side or ours. Try changing the subject and/or content of your message and send it again. If you still didn't receive the response, please contact us.