It means that Application Server is not working. Start the AppServer service from "Start->All Programs->WebSpellChecker->AppServer" or from the "Services" MMC.
It seems that the problem in the IIS settings or in the files permissions.
Try to check IIS Authentication settings first. Start->Control Panel->Administrative Tools->Internet Information Services.
Find Default Web Site and spellcheck virtual directory:
Internet Information Services
Local computer
Web Sites
Default Web Site
spellcheck
Open properties for spellcheck virtual directory, Directory Security Tab, Anonymous Access and authentication control.
Enable Anonymous access and disable any kind of authentication (Digest, Basic or Integrated Windows).
Try to invoke the spellchecker.
If this not helps open the directory c:\Progarm Files\WebSpellChecker\WebComponents\WebInterface in Windows Explorer.
Choose spellcheck directory and open it's properties, Security Tab.
Check whether local users group (COMPUTERNAME/Users) is added with access permissions (Read and Execute/List Folder Content/Read).
If there is no such rights add specified group to the list.
Try to invoke the spellchecker.
Sproxy updates the cache every calendar day by the first request to each file. Also cache is updated after applying changes to the sproxy configuration file.
WebSpellChecker supports most of modern web browsers: IE 6+, FF 1.5+, Safari 3. Please review the full browsers compatibility list in the support section of SpellChecker.net site
SpellCheckAsYouType supports most of modern web browsers: IE 6+ and FF 1.5+. Please review the full browsers compatibility list in the support section of SpellChecker.net site
Please check that service_host setting in the sproxy.ini file has the correct host name.
Please check that service_host setting in the sproxy.ini file has the correct virtual path to the script directory location.
Please check the path to SProxy script. It is provided to the FCKeditor property Config["SCAYTCorePath"].
The sproxy can be verified in separate browser window using URL similar to this:
http://example.net/path_to_sproxy_script/sproxy_script?cmd=ver
Please check the path provided in the FCKeditor property Config["CustomConfigurationsPath"]. It should contain the relative reference from the base FCKeditor directory to the scayt_fck_config.js script.
Open the log file. It is located in "Program Files\WebSpellChecker\AppServer" directory by default. The most common cause of the problem is the expired license. You have this cause if the log file contains the error message "LIC:License is absent". Please contact Tech Support to obtain new license. If it is not a license issue, please perform the following actions:
The term "Unlimited License" is that the license is not limited by time. However, there are the other limitations. The license is always binded to the computer hardware. After moving your server to the new platform you need to re-request your license.