Torquemada,
If you have a choice, you should go with .NET version.
There are two main reasons:
1. Cute Editor for .NET is already version 4.0, Cute Editor for ASP is still version 3.0.
2. The ASP version is a pure script solution. Many functions of .NET version can not be achieved in the ASP version.
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