# Licensing

> Fix license errors of TX Text Control .NET for Windows Forms: controls that could not be licensed, licenses.licx, class libraries, the trial and editions.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > Troubleshooting > Licensing
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/llms-full.txt

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## On This Page

- [Check Which Edition Your Application Runs](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#check-which-edition-your-application-runs)
- [A Control Could Not Be Licensed](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#a-control-could-not-be-licensed)
- [The Error Occurs in a Class Library, User Control or Unit Test](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#the-error-occurs-in-a-class-library-user-control-or-unit-test)
- [The License Isn't Found After an Upgrade](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#the-license-isn-t-found-after-an-upgrade)
- [The License Isn't Found After Renaming an Assembly](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#the-license-isn-t-found-after-renaming-an-assembly)
- [The Trial Version Has Expired](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#the-trial-version-has-expired)
- [A Feature Isn't Available in Your Edition](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#a-feature-isn-t-available-in-your-edition)
- [Related Pages](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/licensing/#related-pages)

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## Nearby

- **Previous:** [Toolbox and Designer](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/toolbox/llms.txt)
- **Next:** [Native Libraries and Architecture Mismatches](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/troubleshooting/native-libraries/llms.txt)