Could not load "Free Text Box" assembly.

Question

Hi,I used Free Text box control in my visual web part.I followed this blog:http://www.aspdotnet-suresh.com/2011/05/richtextbox-sample-in-aspnet-or-how-to.html.

Added FreeTextBox.dll and App_Licenses.dll. when i added the references one more file Licenses.licx also added.When i buid the solution  i got the error:The specified task executable "LC.exe" could not be run. The filename or extension is too long. Then, in some blogs they told to delete the file while compiling the solution .it works fine without building errors.But in sharepoint page i got the error like :Could not load "Free Text Box" assembly.The System Cannot find the assemblies specified. Kindly repond ASAP.