What versions of .Net framwork are installed when you install .Net 3.5 SP1?

Question

I'm trying to confirm which versions of the .Net framework are installed when you just install 3.5 SP1. I know that with 3.5, 2.0 + SP1 and 3.0 + SP1 are installed. I have a client that has a 1.1 app and I want to know what version is loaded when it runs if 1.1 isn't installed.

Answer 1

There is a page on the MSDN that describes the .NET Framework Versions and Dependencies that would probably be of interest.

Most specifically to your question:

The .NET Framework version 3.5 builds upon versions 2.0 and 3.0 and their service packs. The .NET Framework version 3.5 Service Pack 1 (SP1) updates version 3.5 assemblies and includes new servicing updates for versions 2.0 and 3.0.

Answer 2

It wont load any version. 'coz for 1.1 you need to install .NET Framework 1.1 otherwise your app wont run

Answer 3

You need to keep apart the CLR (Common Language Runtime) version, and the .NET framework version.

• .NET framework 1.0 and 1.1 are built on CLR 1.0

• .NET framework versions 2.0, 3.0, 3.5 and 3.5 SP1 are all built on the CLR 2.0 - the newer framework versions are simply additional functionality delivered in the forms of additional assemblies and namespaces - but the core of the runtime system is still the 2.0 CLR

• .NET framework 4 is built on the new CLR 4.0 - so this is a totally new kid in town

If you install .NET framework 3.5 SP1, you get:

• the base CLR version 2.0
• the .NET framework functionalities for 2.0 (plus all SP's), 3.0 (plus all SP's), 3.5, 3.5 SP1

You do not get any support for the CLR 1.0 (.NET 1.0 / 1.1) - if you need that, you'll have to install it separately.