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Frequently Asked Questions

General Questions

Q. What is the difference between the Curl Runtime Environment and the Curl Integrated Development Environment (IDE)?

A. The Curl Runtime Environment enables users to view and interact with applications written in the Curl language. The Curl Integrated Development Environment (IDE) contains the tools needed to develop and deploy Curl applications. These tools include the Source Editor, the Debugger, the Inspector, and innovative interactive documentation.


Q. Anything I need to know before I start installing?

A. Yes, please read the installation notes:
Please verify your system requirements:


Q. How do I know if I have installed the Curl Runtime Environment?

A. For the Curl Runtime Environment:

  • Navigate to Start\Programs\Curl RTE\. Select Curl Control Panel. If it starts you have successfully installed the Curl Runtime Environment. To verify the correct product version number, click on the Curl system tray icon in (blue, green, and white shaped somewhat like an S) and click About the Curl RTE.

For the Curl IDE:

  • Navigate to Start\Programs\Curl IDE\ Select Curl IDE. If it starts, you have successfully installed the Curl IDE. To verify the correct product version number, click on the Curl system tray icon in (blue, green, and white shaped somewhat like an S) and click About the Curl RTE.


Q. How do I uninstall the Curl Runtime Environment or the Curl IDE?

A. Select Add/Remove Programs from Start > Settings > Control Panel. Select Curl RTE 5.0.0.

Internet Explorer-Specific Information

Q. What version of Internet Explorer (IE) does the Curl Runtime Environment work with?

A. The Curl Runtime Environment works with IE version 5.0 and greater.

Netscape®-Specific Information

Q. I am installing using Netscape® browser software , but nothing is happening.

A. This may be due to one of the following issues:

  • If you connect to the Internet through a proxy server,
    you must configure your operating system's Internet Options with the proxy server's information.
    Internet Options are most likely found in your operating system's Control Panel.
    Consult your system administrator or your operating system documentation for information about using a proxy server.
  • Netscape® SmartUpdate and JavaScript must be enabled.
  • To enable SmartUpdate, choose Edit > Preferences > Advanced > SmartUpdate. Make sure that the SmartUpdate box is checked. Click OK.
  • To enable JavaScript, choose Edit > Preferences > Advanced. Make sure that the JavaScript box is checked. Click OK.

Viewing Content on the Web Site

Q. After successfully installing the Curl Runtime Environment or the Curl IDE, why do the demos appear distorted when viewing?

A. Often this kind of problem indicates that the video driver for your graphics card needs to be upgraded.

Server Licenses

Q. Can I edit or rename the server license file?

A.No. An edited server license will not match its signature and the Curl RTE will reject it as invalid. If you rename the file, the RTE will not be able to find it. In either case, your applications will not run.


Q. When should I apply for a license?

A.You should apply for a license when you are certain of the URL for the application to be deployed. Each License file is created upon request. If you are applying for a 60-day evaluation license, the 60 day time limits starts counting down the day the license is created. Therefore, you should apply for a license when the application is ready to be deployed.


Q. Can I have multiple URLs in the same server license?

A. Yes. One server license file can cover multiple application URLs, applications from multiple directories and also multiple hostnames. However, if you have multiple hostnames in your license file, you will need to put the license file in the root directory of the web site, or copy the file into each of the application directories, to cover multiple applications in different subdirectories.