Which asp.net version installed?

[Otis]

Hi everyone, I'd like to ask you a little problem for the community members, which asp.net version installed Thank you very much for helping me with this.

[Charley]

You can use

<%
Response.Write("Version: " + System.Environment.Version.ToString());
%>
That will get the currently running version. You can check the registry for all installed versions at:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP