BruceD,
They are almost same right now.
Both of them are CuteSoft products. CuteEditor uses <div>, DotNetEdit uses <iframe> when they start.
We found it's very difficult to maintain and continue to develop. We terminate <iframe> based development.
In the latest version of dotnetedit, most of the functions have been replaced by cuteedior core code. In the future, they will be merged into one product.
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