FAQ

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If you look for an information about very old versions of CKEditor, FCKeditor and CKFinder check also the CKEditor forum, which was closed in 2015. If not, please head to StackOverflow for support.

Frequently Asked Questions

In this page you can find Frequently Asked Questions (and answers) about FCKeditor. Please do not use this page just for asking questions. For support and discussion questions I invite you to go to our Forums.

Can I use FCKeditor in my commercial software? Must my software be Open Source too?

The editor is licensed under the Open Source GPL, LGPL and MPL licenses making it possible to use it with almost all kinds of software. If these Open Source licenses terms satisfy your needs, you can freely use FCKeditor in your commercial software. You may use any GPL, LGPL or MPL compatible license you want for your software, and it is not mandatory for it to be Open Source or Free Software.

Even if it is free to use FCKeditor, consider giving something back to the project, mainly when using it on commercial software. In this way you can help us maintain the project and the high quality of the editor. It is also the only way for us to compete with commercial editors. Take a look at our commercial license and the e-mail support for some options.

For many companies and products, Open Source licenses or the donation mechanism is not an option. This is why the Closed Distribution License has been introduced: http://www.fckeditor.net/license/commercial

Does FCKeditor work with Safari, over Mac?

Take a look here: http://www.fckeditor.net/safari

What about the "FCKeditor" name?

The editor name starts with the initials of its author, Frederico Caldeira Knabben (see Acronym Finder). It must be written with the "FCK" initials in uppercase, concatenated with the "editor" word in lowercase, with no spaces between them. It is pronounced as you "should" read it: "eff see kay editor".

Do I have to show the original about box in the toolbar?

No. There is no problem on removing the About button from the toolbar. You don't need to show the editor name to your end users at all.

In any case, the legal notices in the editor sources must remain untouched.

In the file browser, I'm having a "XML Request Error : Internal Server Error (500)" . How to find out the problem?

The editor uses a "connector" in the file browser to communicate with the server, through XML, and retrieve files and folders. The connector is available in different programming languages, as ASP and PHP for example.

By default, it is configured to use the ASP one. Be sure you have configured the editor to use the appropriate connector for your preferred language. You can do that in the fckconfig.js file or in your custom Configuration File.

If the configurations seem to be OK, you can use the test page that comes with the connector to check the XML responses that the connector sends and maybe identify errors on the server side. The test page for version before 2.5 is located at "editor/filemanager/browser/default/connectors/test.html". In 2.5 the location has been moved to "editor/filemanager/connectors/test.html"

Another thing to check is that the target folder for the files exists in your server. By default it uses the "/UserFiles/" folder, but it is configurable.

The editor uses a fixed structure in the target folder that separate files used on different dialog boxes, respectively the link, file and flash dialogs. For example, if you are using the "/UserFiles/" as your target file, it will use "/UserFiles/File/", "/UserFiles/Image/", "/UserFiles/Flash/" and "/UserFiles/Media/". The connector tries to create those directories automatically, but on some configurations they need to be created manually to make it work properly.

NOTE for ASP connector : another workaround seem to re-install VBScript runtime (from http://msdn.microsoft.com/scripting) and/or MDAC (from http://msdn.microsoft.com/data/mdac/). Ultimate way : register the scripting library with running "regsvr32 vbscript.dll" in the "<windows folder>\system32\" folder. Also, if IIS is configured to allow "Anonymous" acces, ensure that the IUSR_MACHINENAME account has write permissions to the folder(s).

NOTE for PHP connector : some others problems can generate XML HTTP request error (FCKeditor release 2.2)

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