It's easy to integrate Cute Chat with classic ASP application if you are familar with .NET and ASP technology.
Demo:
For details please check the following article:
Integration with an existing user membership database (Direct Log In Mechanism)
>>I do not know how to code ASP.NET.
You need to find an asp.net developer help you on this issue.
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