Yes, you can just modify your web.config file of DNN 2.1.2.
<add name="CEHtmlEditorProvider"
type="DotNetNuke.HtmlEditor.CEHtmlEditorProvider, DotNetNuke.CEHtmlEditorProvider"
providerPath="~\Providers\HtmlEditorProviders\CEHtmlEditorProvider\CuteSoft_Client\CuteEditor\"
UseDNNRootImageDirectory="true"
RemoveServerNamesFromUrl="true"
UseRelativeLinks="true"
RenderRichDropDown="true"
UseSimpleAmpersand="false"
CustomCulture=""
MaxHTMLLength="250"
......
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx