resource cannot be found Requested URL: /KeyEditerFK/edito

Hi

I have a problem please help me :cry:

i m useing the FCKeditor - ASP.NET and flow the STEPS:
http://docs.fckeditor.net/FCKeditor_2.x ... NET#Step_2

But i can not run the FCKeditor . my Application show the error

________________________________________________________________________________________

Server Error in '/KeyEditerFK' Application.
--------------------------------------------------------------------------------

The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /KeyEditerFK/editor/fckeditor.html
____________________________________________________________________________________________

please help me out for run the FCKeditor