Version 3.5Dot NET Framework is officially available (RTM) since November 19, 2007. Like version 3.0, version 3.5 uses version 2.0 of the CLR. This version of the framework includes the Dot NET Framework 2.0 SP1 that adds methods and properties to the library databases from version 2.0.
Dot NET Framework 1.0 — First version of Dot NET Framework: It is available since February 13, 2002 and runs on Windows platforms Windows 98, NT 4.0, 2000, XP. — Dot NET Framework 1.1…
Dot NET (“.NET”) framework is a framework that can be used by an operating system Microsoft Windows and Microsoft Windows Mobile from version 5 (Dot NET Compact Framework)