Note: Advice in this article will only work for JxBrowser 6. See the corresponding article for JxBrowser 7 here.(注意：本文中的建议仅适用于JxBrowser6，JxBrowser7相应文章请点击这里。)
A free 30-days Evaluation Licence you can request using web form on the product web page.(您可以使用产品网页上的Web表格申请30天的免费评估许可证。)
When you request a free 30-days evaluation licence file, you get an email message with the link to download a licence.jar file. To start the evaluation of JxBrowser you just need to include this licence.jar into your Java application class path.(当您请求免费的30天评估许可证文件时，您会收到一封电子邮件，其中包含下载licence.jar文件的链接。要开始评估JxBrowser，您只需要将此licence.jar包含在Java应用程序类路径中即可。)
Note: the 30-days evaluation period starts right after you request an Evaluation Licence using the web form. In 30 days the licence stops working. If you request another 30-days Evaluation Licence, it won't work in the environment where you already tried a previous, already expired Evaluation Licence.(注意：30天的评估期从您使用Web表单申请评估许可证后立即开始。许可证在30天内停止工作。如果您要求再申请30天的评估许可证，则在您已经尝试过先前的，已经过期的评估许可证的环境中将无法使用。)
Extending Evaluation Period(延长评估期)
If you need to extend your evaluation period, then please contact Sales team at sales@teamdev.com(如果您需要延长评估期限，请通过sales@teamdev.com与销售团队联系。)